TACHA, Chief Circuit Judge.
This matter is before the court on the National Labor Relations Board’s (“NLRB”) petition for an order enforcing its July 31, 2001, order. The order concludes that Interstate Builders, Inc. (“Interstate”) committed unfair labor practices in OWahoma in violation of sections 8(a)(1) and (3) of the National Labor Relations Act (the “Act” or “NLRA”), codified at 29 U.S.C. § 158(a)(1) & (3). The Board adopted the rulings, findings, and conclusions of the administrative law judge (“ALJ”) who conducted hearings on the alleged unfair practices. We exercise jurisdiction pursuant to 29 U.S.C. § 160(e) and grant enforcement of the order.
BACKGROUND
This case arises from an attempt by the International Association of Bridge, Structural, Ornamental & Reinforcing Iron Workers Local 48 (the “Union”) to unionize the employees at Interstate. Based solely on credibility determinations, the Board found that Interstate coercively interrogated applicants and employees about their union membership and activities, created the impression that employees’ union activities were under surveillance, threatened to impose more onerous working conditions if the employees unionized, implied that support of a union would be futile, and violated sections 8(a)(1) and (3) of the Act by imposing more onerous working conditions on — and ultimately laying off — employee David Hibdon. Interstate does not object to these determinations. NLRB July 31, 2001 Final Order (“NLRB Order”) at 1 n. 3. We therefore grant the Board’s application for enforcement of the general cease-and-desist provisions and the remedy provisions relating to Mr. Hibdon.
[1024]*1024We address below Interstate’s objections to enforcement of the order requiring Interstate to reinstate John Norman and make him whole as to backpay and other benefits, and to offer John Buntin, Derrick Haggard, Wesley Stillsmoking, and Floyd Woods the jobs for which they attempted to apply (or to substantially equivalent positions) without prejudice to seniority or other benefits and to make them whole “for any loss of earnings and other benefits suffered” as a result of Interstate’s refusal to hire them. See id. at 3.
In February 1998, after eight or ten of his employees had signed union cards, Bill Napier, Interstate’s president, met with the Union to discuss voluntary unionization of the business. Napier, a former union member himself, told the Union that he would sign a post-dated agreement (dated three months ahead) to unionize, but Union officials refused the offer. The Union immediately assigned the unionized Interstate employees to jobs with Union contractors competing with Interstate, causing them to leave Interstate’s employ and raising concerns that the Union would try to run Interstate out of business.
Interstate advertised for replacement certified welders or ironworkers in February and May of 1998. During this period, the Union continued to engage in an active campaign to organize employees at Interstate. Norman, a full-time Union employee and organizer who is also a journeyman ironworker, applied for an ironworker job with Interstate on February 23, noting on his application that he worked for the Union as an organizer. Norman listed $22.57/ hour on his application as “salary expected.” According to Norman, Tommy Young, Interstate’s supervisor, interviewed him and, holding his thumb and index fingers close together, stated that Interstate was “that close to signing a contract” with the Union. Young also stated that Napier needed more time before signing a union contract.
It is undisputed that Young told Norman that Interstate paid $16/hour, not $22.57/hour, and Young memorialized that statement by writing “$16.00 an hour, no benefits” in the corner of Norman’s application. Norman’s reply was, “[D]o you want me to leave.... Or can I sit down and talk?” Norman stated that when he asked if Young was going to hire him, Young responded, “no.” According to Young, Norman asserted that “if he could not organize us, he was going to take our employees.” Norman did not deny making that statement. Young testified that he did not hire Norman because Norman demanded more on his application than the $16/hour Interstate was offering for the position.
On March 2, Norman filed a complaint alleging that Interstate had committed unfair labor practices, including unlawful interrogation of an unnamed employee about his union activity and subsequent refusal to provide work to the employee. Norman did not, however, allege that he had been unlawfully denied employment on February 23.
In response to notice of the interrogation charge, Interstate called Norman on March 17, offering him the job for $16/ hour, which Norman accepted. Norman was not available to work until March 23; he started work on Tuesday, March 24. Richard Hopper was assigned as his helper, grinding Norman’s welds. During the course of their two and one-half days of working together, Norman convinced Hopper to join the Union. Hopper testified that Norman “hound[ed]” him up to four times a day while they worked together, telling him to leave Interstate because the Union needed him.
Norman took half a day off work on Thursday, March 26 for a doctor’s appoint[1025]*1025ment. On March 27, a Friday rain day that closed the job site, Norman saw Hopper at the Union offices, and the Union sent Hopper to work for a Union contractor instead of Interstate. On Monday, March 30, when Norman returned to work at Interstate for his first full week on the job, Harry Young, Interstate’s job foreman and Tommy Young’s brother, asked where Hopper was. Norman told him that he had “signed [Hopper] to the Union” and that Hopper would not be returning to work at Interstate. Norman then complained that he could not do the work assigned to him alone and asked for another helper. Young refused, saying that Norman would just organize whoever he hired and Interstate would lose him. It is undisputed that Norman replied, “That’s my job. I’m a Union organizer.” It is also undisputed that Norman then demanded a raise, stating that the job was worth $22.57. Young told him that Interstate was not offering that wage. According to Young, Norman said he had to have $22.57/hour or he could not work. According to Norman, Young said, “I ain’t putting up with this shit” and told Norman to go pick up his final paycheck.
John Dyer, a disinterested witness who overheard part of the conversation, corroborated Young’s version of the incident. According to Dyer, Norman became adamant, erroneously claimed that $22/hour was the prevailing job wage for the job, and implied that if he didn’t get a $6/hour raise, he would quit and walk off the job. Dyer also testified that he did not hear Norman state that he would quit if he did not receive the requested pay raise.
Norman testified that he complained about the welding leads on the job to Young immediately after Young told him to pick up his paycheck, implying that the equipment violated OSHA requirements. Norman also claimed to have backed down and told both Harry and Tommy Young that he would work for $16/hour, an assertion the Youngs denied at trial.
Norman returned to his full-time job at the Union and filed an amended charge for unfair labor practices against Interstate on April 1. In this amended charge, he alleged for the first time that Interstate had discriminated against him since February 23 by refusing to consider him for employment. He also filed a separate charge on the same day, alleging that he was fired for his union activity.
Hopper testified that, after he had joined the Union and worked on a couple of union jobs, Norman called him in and asked him to work for Interstate again and “get them on [OSHA] violations and call [Norman] every day at noon ... [i]f I found any violations.” He testified that Norman told him that if the Union could not make Interstate go union, they wanted to put Interstate out of business. Hopper’s testimony was unrebutted.
The Union mailed ironworker job applications of Union members to Interstate in April. In a letter dated April 9, 1998, Napier informed the Union in writing that it dealt directly with job applicants and did not recognize the Union as the representative of job applicants. Napier invited any individual to come to Interstate’s office, submit an application, and engage in a short interview. On May 10, Interstate ran another ad seeking ironworkers. Norman spoke to Buntin and Haggard (whose applications the Union had sent to Interstate in April) and Woods and Stillsmok-ing, all members of the Union, asking if they “were willing to serve as volunteer organizers.” When they agreed to apply for jobs at Interstate, he had them fill out job applications, putting “ironworker” and “volunteer organizer” in the spaces under “employment experience.” Norman then [1026]*1026took the men to Interstate’s office on May 12.
Norman entered Tommy Young’s office with Buntin, an executive board director for the Union. He told Young that he had four union men who wanted to fill out applications in response to the ad. Young told Norman that Interstate did not want union representation and asked whether Norman had received Napier’s April 9 letter informing the Union it did not accept applications from the Union. Norman told Young, “We’re not union representation. These guys will work for what you put in the paper.” Buntin then asked Young, ‘You don’t need any help?,” to which Young replied, “No.” Buntin then reminded Young about the advertisement, and Norman said, ‘You’re not going to let these guys put their applications in, Tommy?,” to which Young replied, “No.” Norman attempted to hand Young the completed applications; Young refused to accept, telling the applicants to “file another goddamn complaint” instead. Norman later acknowledged that he “spoke for” some of the men at this meeting.
Tommy Young apparently contacted legal counsel after the incident, then wrote a letter to Norman at his Union office the same day. In it, Young explained that his impression had been that Norman had sought recognition of the Union as the collective bargaining representative of the four applicants. He repeated Napier’s explanation that Interstate did not recognize the Union as the representative of job applicants. The letter stated that if any of the individuals who had come to the office wished to make application without conditioning the application on Interstate recognizing the Union as their collective bargaining representative, they should return with their applications and Interstate would consider them for employment if they were qualified. The letter also stated that Young had recently discovered that Norman had told agents of the NLRB that he was willing to work for $16/hour, contrary to his previous statement on March 30 that he required $22.57/hour. He told Norman that, if he was willing to work for $16/hour, to report for work the next morning. Norman denied having seen this letter. Interstate hired several ironwork-ers between May 18 and September 15.
Norman filed another charge of unfair labor practices with the Board on May 12 regarding Interstate’s refusal to hire the four men. All the charges were consolidated, and the ALJ held a hearing in September 1998, from which we have summarized the testimony set forth above.
Before the ALJ, Interstate officials testified that Norman was not discharged. Instead, they testified that Norman quit his employment at Interstate because he was not given the requested pay raise. The ALJ rejected Interstate’s testimony, finding instead that Interstate discharged Norman because of his “organizing efforts.” Interstate now concedes that it discharged Norman, arguing on appeal that the order should not be enforced because Norman’s discharge was for cause. In addition, Interstate contends that the Board erred in upholding the ALJ’s finding that Interstate violated the Act by refusing to hire Buntin, Haggard, Stills-moking, and Woods on May 12,1998.
DISCUSSION
I. Overview of Applicable Law
A. “Unfair Labor Practice” Under the NLRA
Section 8(a) of the NLRA prohibits “discrimination in regard to hire or tenure of employment or any term or condition of employment to encourage or discourage membership in any labor or[1027]*1027ganization.” 29 U.S.C. § 158(a)(3). In general, for both refusal-to-hire and wrongful-termination cases, the critical question is the company’s motivation for the challenged conduct; specifically, we focus on whether “anti-union animus” motivated that conduct. NLRB v. Transp. Mgmt. Corp., 462 U.S. 393, 103 S.Ct. 2469, 76 L.Ed.2d 667 (1983), overruled in part on other grounds by Dir., Office of Workers’ Comp. Programs v. Greenwich Collieries, 512 U.S. 267, 276-78, 114 S.Ct. 2251, 129 L.Ed.2d 221 (1994); MJ Metal Prods., Inc. v. NLRB, 267 F.3d 1059, 1065-66 (10th Cir.2001). As we have previously recognized, “[a]n employer’s anti-union motivation often may be proven only by circumstantial evidence.” Ready Mixed Concrete Co. v. NLRB, 81 F.3d 1546, 1550 (10th Cir.1996). Thus, in determining a company’s motivation, “[t]he NLRB may consider factors such as the employer’s knowledge of the employee’s union activities, the employer’s commission of other unfair labor practices, the timing of the employer’s action, and the credibility of its explanation of the reasons for the discharge.” MJ Metal Prods., 267 F.3d at 1065.
We have previously approved the NLRB’s burden-shifting approach in section 8(a) cases: “Initially, the [NLRB’s] General Counsel must establish that the employee’s protected conduct was a substantial or motivating factor in the discharge decision; thereafter the burden shifts to the employer to show that it would have reached the same decision absent the protected conduct.” Ready Mixed Concrete, 81 F.3d at 1550 (internal quotation marks omitted).
Thus, an employer “does not violate the NLRA ... if any anti-union animus that he might have entertained did not contribute at all to an otherwise lawful discharge for good cause.”1 Transp. Mgmt., 462 U.S. at 398, 103 S.Ct. 2469 (emphasis added). As we have previously noted, “[t]he Act does not allow [the] Board to act as a ‘super-employer’ in derogation of the right of the employer to select its employees or discharge them.” NLRB v. First Nat’l Bank of Pueblo, 623 F.2d 686, 693-94 (10th Cir.1980) (citations omitted). “The statute does not touch the normal exercise of the right of the employer to select its employees or to discharge them. It is directed solely against the abuse of that right by interfering with the countervailing right of self-organization.” Phelps Dodge Corp. v. NLRB, 313 U.S. 177, 187, 61 S.Ct. 845, 85 L.Ed. 1271 (1941) (quotation omitted). In other words, “what the Act purports to do is simply to withdraw a range of factors from the employer’s consideration when exercising his otherwise unfettered discretion to discharge an unwanted employee. In short, sections 8(a)(3) and (1) require that an employer not terminate an employee out of hostility toward the latter’s union activities.” First Nat’l Bank of Pueblo, 623 F.2d at 693-94. In sum, where “anti-union animus actually contributed to the discharge decision,” an employer violates the NLRA. Transp. Mgmt., 462 U.S. at 398, 103 S.Ct. 2469 (emphasis added).
B. Standard of Review
“We will grant enforcement of an NLRB order when the agency has correctly applied the law and its findings are supported by substantial evidence in the record as a whole.” Miera v. NLRB, 982 F.2d 441, 444 (10th Cir.1992). “Substantial evidence is defined as such relevant evidence as a reasonable mind might ac[1028]*1028cept as adequate to support a conclusion.” Ready Mixed Concrete, 81 F.3d at 1551 (internal quotation marks omitted). Although substantial-evidence review is “quite narrow,” id., in conducting our review, we must keep in mind that “Congress has imposed on [us] responsibility for assuring that the Board keeps within reasonable grounds,” Universal Camera Corp. v. NLRB, 340 U.S. 474, 490, 71 S.Ct. 456, 95 L.Ed. 456 (1951). As the Supreme Court has previously noted:
The substantiality of evidence must take into account whatever in the record fairly detracts from its weight.... Congress has ... made it clear that a reviewing court is not barred from setting aside a Board decision when it cannot conscientiously find the evidence supporting that decision is substantial, when viewed in the light that the record in its entirety furnishes, including the body of evidence opposed to the Board’s view.
Id. at 488, 71 S.Ct. 456. That said, “[w]e may not overturn a Board decision just because we might have decided the matter differently; rather, our function is to ascertain that ‘the Board acts within reasonable bounds and that the supporting evidence is truly substantial.’ ” Ready Mixed Concrete, 81 F.3d at 1551 (internal quotation marks and quotation omitted).
In this case, Interstate challenges three aspects of the NLRB’s enforcement petition: first, the ALJ’s revocation of Interstate’s . subpoena; second, the NLRB’s conclusion that Interstate’s termination of John Norman violated the NLRA; and, third, the NLRB’s conclusion that Interstate’s refusal to hire the four applicants of May 12 violated the NLRA. We consider each question in turn.
II. Whether the NLRB Abused Its Discretion in Upholding the ALJ’s Revocation of .Interstate’s Subpoena.
A. Abuse of Discretion
We review the Board’s rulings on subpoenas for an abuse of discretion.2 See, e.g., Glenn v. Shalala, 21 F.3d 983, 988 (10th Cir.1994).
In exercising [its] discretion, ... the Board must comply as far as practicable with the rules of evidence applicable in federal courts. Thus, unless the special characteristics of an administrative hearing require otherwise, the Board may revoke a subpoena only if to do so would be proper in federal district court. Such revocation generally requires a valid evidentiary objection to the material . sought under the subpoena,.
Canova v. NLRB, 708 F.2d 1498, 1501 (10th Cir.1983) (citations omitted).
Section 11(1) of the Act governs
the issuance of subpoenas in NLRB proceedings. This section provides that “[t]he Board, or any member thereof, shall upon application of any party to [its] proceedings, forthwith issue to such party subpoenas requiring the attendance and testimony of witnesses ... in such proceedings-”29 U.S.C. § 161(1). On application of the subpoenaed party, “the Board shall revoke[ ] such subpoena if in its opinion the evidence whose production is required does not relate to ... any matter in question in such proceedings, or if in its opinion such subpoena does not describe with sufficient particularity the [1029]*1029evidence whose production is required.” Id. “Although the statute explicitly permits the quashing of subpoenas only for irrelevance or lack of particularity, it does not explicitly exclude other grounds.” Drukker Communications, Inc. v. NLRB, 700 F.2d 727, 730 (D.C.Cir.1983). Rather, the statute provides that the Board may also revoke a subpoena on any other ground which is consistent with the overall powers and duties of the Board under the Act considered as whole. “In short, section (H)(1) is not intended as a complete and inclusive catalogue of all grounds upon which a Board subpoena may be revoked.” General Engineering, Inc. v. NLRB, 341 F.2d 367, 373 (9th Cir.1965).
In this case, Interstate requested several categories of Union documents and records, including the following:
1. The current constitution of the International Union (“IU”)
2. The current by-laws of [the Union]
3. All current collective bargaining agreements to which [the Union] is a party;
4. The following records generated between January 1, 1998 and the present relating to Jerry Griffith, John Buntin, Wesley Stillsmoking, Floyd Woods, and/or Derrick Haggard:
a. Records of the payment of dues and other financial contributions to the [IU or Union].
b. Records of the payment of pension and other retirement benefits made by the [IU or Union].
c. Records of referrals for work to any employer through any hiring hall or other referral system operated by [the Union].
d. Records of work performed for any employer.
e. All letters, memoranda, notes and reports relating to the activities or status of such persons as members of the [IU or Union].
4. [sic] All minutes of meetings of the membership of [the Union] from January 1, 1998, to present.
5. All minutes of meetings of any committee of [the Union] from January 1, 1998, to the present.
6. All resolutions passed by [the Union] from January 1, 1998 to the present.
7. All manuals or other instructional material relating to means and methods to organize employees for the purpose of collective bargaining including so-called “salting” initiatives.
8. All newsletters and other publications of general distribution to the membership of the [IU and Union] from January 1, 1997, to the present.
9. Documents and other material generated by, or for, John Norman relating to his schedule of work and duties as an employee of [the Union], including, but not limited to, calendars, time slips, appointment books for the period of March 23, 1998, to April 3, 1998.
10. All written reports or notes of any oral reports submitted by John Norman between January 1, 1998, to the present in his capacity as an employee of [the Union].
11. All letters written or received by [the Union], notes, memoranda or other material referring to or relating to Interstate Building, Inc.
Before the ALJ, Interstate argued that it needed these documents to support its affirmative defense to the Union’s allegations. Specifically, Interstate sought to demonstrate that the Union representatives aspired to “strip” Interstate’s employees and thereby damage Interstate’s [1030]*1030business. The Union objected to production of these documents on relevancy and confidentiality grounds.
The ALJ revoked all the document requests except for numbers 9 and 10, finding the requests “too speculative in nature and that it was a fishing expedition type of subpoena” or “at best, an attempt at pretrial discovery, which is not allowed by the Board.” The ALJ alternatively justified the revocation by stating that the requested materials were “not relevant or material to any issue bearing on [Interstate’s] conduct in this case dealing with its interaction with the job applicants,” but appeared instead to be a “collateral attack” on the Union’s salting program. Based on these findings, the ALJ concluded that “the likelihood of it producing any information that would tend to relate to any material fact in dispute is so remote that it is an unjustified burden on the parties and the procedures of the Board.”
Initially, we reject the ALJ’s conclusion that the requested documents were irrelevant. The ALJ’s own discussion of the documents belies this conclusion. The ALJ found that “[Interstate’s] request would appear to be a collateral attack on the Union’s organizing practice or ‘salting’ program.” Although we are uncertain what the ALJ meant by “collateral attack,” the ALJ correctly concluded that Interstate sought the documents in order to determine the nature of the Union’s salting initiative, namely, whether Interstate was engaging in activity unprotected under the NLRA. The ALJ also allowed Interstate to question the General Counsel’s witnesses concerning the requested documents, further undermining his relevancy conclusion. We agree with Interstate that “if questions about a particular subject are relevant to the issues then documents relating to that same subject matter must likewise be relevant.” Finally, we also agree with Interstate that the ALJ’s alternative justification — that the document requests were overly burdensome and constituted a “fishing expedition” — is in tension with his relevance conclusion. The protection afforded by Federal Rule of Civil Procedure 26(b)(2), which prohibits overly burdensome discovery, presupposes that the materials are relevant.
Our determination that the ALJ’s stated grounds for revoking the subpoena were inconsistent does not, however, conclude our analysis. If the ALJ based his decision on two reasons, one correct (insufficient particularity) and one incorrect (irrelevance), we would hesitate to find an abuse of discretion. Thus, while it is true that some of the evidence sought may well have been relevant to Interstate’s affirmative defense, we must also consider whether the ALJ was correct in concluding that the subpoena, taken as a whole, constituted a “fishing expedition.” See Drukker Communications, 700 F.2d at 732 (stating that “more generalized ‘fishing expeditions’ for helpful evidence ... have uniformly been rejected”); J.H. Rutter Rex Mfg. Co., Inc. v. NLRB, 473 F.2d 223, 231 (5th Cir.1973) (fact that Board’s files may have contained relevant evidence did not “entitle company to a wholesale fishing expedition into the Board’s files”); but cf. EEOC v. Dillon Companies, Inc., 310 F.3d 1271, 1275 (10th Cir.2002) (finding in context of EEOC charge that “even some requests we previously considered to be administrative ‘fishing expeditions’ are often permitted”) (internal quotation marks omitted); NLRB v. Bakersfield Californian, 128 F.3d 1339, 1340 (9th Cir.1997) (reversing district court’s holding that section 11(1) does not authorize the Board to engage in fishing expeditions at the expense of the newspaper’s legitimate business interest); EEOC v. University of New Mexico, 504 F.2d 1296, 1303 (10th Cir.1974) (noting that some subpoenas [1031]*1031“which we have previously considered to be administrative ‘fishing expeditions’ are often permitted”).
Our review of the subpoena suggests that some of Interstate’s requests were indeed overly broad; clearly, Interstate did not tailor its discovery request as closely as it could have. We are not, however, convinced that the requests were so overbroad so as to constitute a wholesale “fishing expedition” meriting revocation in almost every particular. We therefore find that the ALJ abused his discretion in summarily revoking the bulk of the subpoena.
B. Prejudice
Demonstrating that the ALJ abused his discretion in revoking the subpoena does not, however, entitle Interstate to relief. Interstate must also demonstrate that the ALJ’s abuse of discretion placed a prejudicial “barrier in the way of [its] ability to present its case.” Joseph T. Ryerson & Son, Inc. v. NLRB, 216 F.3d 1146, 1154 (D.C.Cir.2000); see NLRB v. Cent. Okla. Milk Producers Ass’n, 285 F.2d 495, 498 (10th Cir.1960) (“There can be no cause for reversal [based on revocation of a subpoena] in the absence of some proof of resulting prejudice.”). We conclude that Interstate failed to make a sufficient showing of prejudice with respect to the termination of Norman and the refusal to hire the May 12 applicants.
1. Prejudice with respect to the Novman termination claim
Regarding Norman’s termination, Interstate received the requests numbered 9 and 10. These documents included all materials generated by, or for, John Norman relating to his schedule of work and duties as an employee of the Union, including, but not limited to, calenders, time slips, appointment books for the period of March 23, 1998, to April 3, 1998, and all written reports or notes of any oral reports submitted by John Norman between January 1, 1998, to the time of the hearing generated in Norman’s capacity as an employee of the Union. Interstate concedes that documents contained in numbers 9 and 10 are not in issue. Included in these documents was Norman’s written report, in which he recited his March 30, 1998, conversation with Harry Young. In this report, Norman stated that he told Young “that Hopper would not be back, that I signed him to the Union, I told him that was my job.”
Furthermore, at the hearing, Norman testified that he induced Hopper to leave Interstate, and Norman’s testimony was confirmed by the testimony of Hopper. As such, we cannot see how the ALJ’s revocation prejudiced Interstate’s ability to assert an affirmative defense concerning Norman’s allegedly unprotected activity. For this reason, we find that Interstate was not prejudiced by the ALJ’s revocation of the subpoena as it related to the Norman termination violation.
2. Prejudice with respect to the refusal-to-hire claim
We conclude, for several reasons, that Interstate failed to demonstrate prejudice with respect to the ALJ’s conclusion that Interstate’s refusal to hire the May 12 applicants violated the NLRA.
As an initial matter, we agree with Interstate that, in circumstances not well-defined by the caselaw, employee3 misconduct might rise to the level of a “disabling [1032]*1032conflict,” which in turn can justify a company’s termination of, or refusal to hire, union employees. See, e.g., Contractors’ Labor Pool, Inc. v. NLRB, 323 F.3d 1051, 1060 (D.C.Cir.2003); Casino Ready Mix, Inc. v. NLRB, 321 F.3d 1190 (D.C.Cir.2003). Thus, Interstate could have taken the position that the May 12 applicants intended to engage in a sabotage campaign in order to run Interstate out of business, and that this disabling conflict constituted its motivation for refusing to hire them. But prevailing on this theory would have required Interstate to show that it would have refused to hire the May 12 applicants for this reason alone, i.e., even in the absence of anti-union animus. Ready Mixed Concrete, 81 F.3d at 1550 (emphasis added).
Interstate fails by a wide margin to provide the necessary support for this-argument. Before the ALJ, and before this court on appeal, Interstate relied on its policy of dealing directly with job applications to justify its refusal to hire the May 12 applicants. According to Interstate’s own brief, “[i]t is apparent from the overall record that [Interstate’s] only reason for refusing to hire the four individuals was their insistence on dealing with [Interstate] through a collective bargaining representative.” (emphasis added). We cannot reconcile this statement with Interstate’s prejudice argument on appeal, which appears to be as follows: (1) Interstate’s “other” or “true” motivation for its refusal to hire the applicants was the sabotage campaign in which Interstate argues the May 12 applicants intended to engage; (2) the ALJ, by revoking the bulk of the subpoena, deprived Interstate of documents that might have demonstrated the existence of such a disabling conflict; (3) Interstate was thereby prevented from advancing its “other” or “true” motivation because of the resulting absence of documentary support; and (4) this obstacle to the presentation of its affirmative defense constitutes prejudice requiring us to deny enforcement of the Board’s order.
We reject this argument for two reasons. First, denying Interstate access to the documents at issue did not prevent the company from explaining its “true” motivation for refusing to hire the May 12 applicants. Presumably, it was and remains the ultimate authority on its own motivation and could have articulated it absent “documentary support” from the Union’s files. The revocation at most temporarily deprived Interstate of documents that might have provided evidence supporting the reasonableness of that “other” or “true” motivation; and, as we note below, even this possible deprivation was mitigated by the ALJ’s “curative” statement that he would entertain additional document requests should the relevance of the documents become apparent during examination.4 Second, the tension between the two positions Interstate advances makes it highly unlikely that the ALJ would have concluded that either justification rebutted the General Counsel’s prima facie showing of anti-union animus.5 Cf. NLRB v. Dillon Stores, 643 F.2d 687, 693 (10th Cir.1981) (finding that the employer’s proffer of “a flimsy or unsupported explanation may affirmatively suggest that the employer has seized upon a pretext to mask an antiunion motivation”).
[1033]*1033Moreover, the record is replete with evidence supporting the ALJ’s conclusion that Interstate refused to hire the May 12 applicants based on simple anti-union animus, rather than concern about a sabotage campaign.6 Indeed, Interstate points to no evidence in the record that would support a finding that its motivation for the refusal to hire was its belief that the May 12 applicants intended to engage in a sabotage campaign. Thus, even if the requested documents could have substantiated the reasonableness of Interstate’s ostensible motivation, Interstate would have to first point to evidence that this was, in fact, its motivation. Insofar as Interstate has failed to do anything of the kind, we cannot conclude that the ALJ’s error prejudiced Interstate. Ready Mixed Concrete, 81 F.3d at 1553 (“[O]ur review is limited to ascertaining whether substantial evidence supported the Board’s conclusion that [the company] did not carry its burden. It is not for [the company] to prove that it ‘could have discharged [the employee for his actions], but whether it would have done so regardless of [his] union activities.’ ”) (emphasis added).
Finally, the ALJ allowed Interstate to question Union members about the existence of the requested documents and the information, if any, that the documents contained. Further, the ALJ specifically informed Interstate that it could renew its request at a later point:
If some things come up during the examination of the witness that would tend to indicate the presence of documents that are relevant to some issue that will be decided here, then I will entertain any subsequent motion by [Interstate] for the production of those documents.
NLRB Order, at 7. Despite this offer, Interstate made no further requests for the production of documents. Instead, it emphasized that its sole motivation in refusing to hire the May 12 applicants was its firm policy of dealing directly with job applicants as opposed to their representatives.
3. Conclusion
For the foregoing reasons, we conclude that Interstate failed to demonstrate prejudice resulting from the ALJ’s revocation of its subpoena.
III. Whether Substantial Evidence Supported the NLRB’s Conclusion that Interstate’s Termination of John Norman Violated the NLRA.
We next consider the NLRB’s conclusion that Interstate violated section 8(a)(3) and (1) of the NLRA by terminating John Norman’s employment. In its July 31, 2001, order, the NLRB adopted the ALJ’s ruling, wherein the ALJ concluded that “Norman was fired because [Interstate] would not put up with Norman’s organizing efforts ... [and Interstate] has failed to persuasively show that Norman would have been terminated even in the absence of his union activities.” NLRB Order, at 10 (emphasis added).
On appeal, Interstate raises two principal challenges to the NLRB’s conclusion. First, Interstate contends that it discharged Norman because he requested a wage increase, conduct which Interstate [1034]*1034contends is not protected under the NLRA. Second, Interstate argues that it discharged Norman for inducing Richard Hopper to leave Interstate’s employment, conduct which Interstate again contends is not protected under the NLRA. We consider each contention in turn.
With respect to the former, the ALJ rejected Interstate’s contention that Norman’s request for a pay raise constituted its “true” motivation for its discharge. For the reasons set forth below, we conclude that substantial evidence supports this finding.
First, although Harry Young fired Norman immediately after Norman requested a pay raise, Young’s comments to Norman did not focus on the pay-raise request; rather, as the ALJ noted, “Young clearly expressed] his irritation with Norman by commenting that Norman would just organize any new [worker] (and induce him to leave as Hopper did).” Id. at 9-10. In other words, Norman’s “organizing efforts,” rather than his request for a pay raise, appear to have been Young’s primary concern.
Second, as the ALJ noted, Interstate had initially refused to hire Norman on February 23, 2001, based on his position as a “union organizer.”7 In addition, Interstate contemporaneously engaged in numerous other unfair labor practices, including its unlawful interrogation of employees and its imposition of more onerous working conditions on those affiliated with the Union. The ALJ properly considered Interstate’s contemporaneous unfair labor practices, MJ Metal Prods., 267 F.3d at 1065, and we agree that these acts support a finding of anti-union animus on the part on Interstate.
Third, before the ALJ, Interstate advanced pretextual explanations for Norman’s departure, arguing that Norman quit and suggesting that Interstate fired Norman based on his poor work-attendance record. NLRB Order, at 9. As we have previously noted, the NLRB may properly consider the “credibility of [the company’s] explanation of the reasons for the discharge,” MJ Metal Prods., 267 F.3d at 1065, and “a flimsy or unsupported explanation may affirmatively suggest that the employer has seized upon a pretext to mask an anti-union motivation,” NLRB v. Dillon Stores, Division of Dillon Cos., Inc., 643 F.2d 687, 693 (10th Cir.1981).
We next consider Interstate’s alternative justification for its termination of Norman: the fact that Norman induced Richard Hopper to join the union and leave Interstate’s employment.8 For purposes of argument only, we assume, as [1035]*1035Interstate contends, that the ALJ concluded that Interstate terminated Norman based in part on the fact that he induced Richard Hopper to leave Interstate’s employment.9 We further assume, as Interstate suggests, that Norman’s conduct in inducing Hopper to leave Interstate’s employment was separable from his other, protected “organizing efforts,” and that Interstate therefore could have terminated Norman on this basis without violating the NLRA.
But even making these two assumptions, we must still conclude that substantial evidence supported the ALJ’s finding of a violation. As we noted in Ready Mixed Concrete, “[i]t is not [sufficient] for [Interstate] to prove that it could have discharged [Norman for his actions], but whether it would have done so regardless of [his] union activities.” 81 F.3d at 1553 (quoting Presbyterian/St. Luke’s Med. Center v. NLRB, 723 F.2d 1468, 1480 (10th Cir.1983)) (internal quotation marks omitted) (second emphasis added). Thus, even assuming that Norman’s inducing Hopper to leave precipitated Interstate’s termination of Norman in part-making this a “mixed motive,”10 or even a “disabling conflict” 11 case — we agree with the ALJ that Interstate “failed to persuasively show that Norman would have been terminated even in the absence of his union activities.” NLRB Order, at 10.
In sum, “substantial evidence supports the Board’s determination that the General Counsel for the Board proved a prima facie case of unlawful discriminatory discharge, and that [Interstate] did not meet its burden of showing that [Norman] would have been discharged in the absence of his protected union activity.” Miera v. NLRB, 982 F.2d 441, 446 (10th Cir.1992). Accordingly, the NLRB is entitled to enforcement of this portion of its July 31, 2001, order.
IV. Whether Substantial Evidence Supported the NLRB’s Conclusion that Interstate’s Refusal to Hire the May 12 Applicants Violated the NLRA.
Substantial evidence clearly supports the Board’s conclusion that Interstate violated the Act when it refused to hire the four May 12 applicants. The elements of a refusal-to-hire violation are as follows:
To establish a discriminatory refusal to hire, the General Counsel must, under the allocation of burdens set forth in Wright Line, 251 NLRB 1083 (1980), enfd. 662 F.2d 899 (1st Cir.1981), cert. denied 455 U.S. 989, 102 S.Ct. 1612, 71 L.Ed.2d 848 (1982), first show the following at the hearing on the merits: (1) that the respondent was hiring, or had concrete plans to hire, at the time of the alleged unlawful conduct; (2) that the applicants had experience or training relevant to the announced or generally known requirements of the positions for hire, or in the alternative, that the employer has not adhered uniformly to such requirements, or that the require[1036]*1036ments were themselves pretextual or were applied as a pretext for discrimination; and (3) that antiunion animus contributed to the decision not to hire the applicants. Once this is established, the burden will shift to the respondent to show that it would not have hired the applicants even in the absence of their union activity or affiliation.
FES (a Division of Thermo Power), 2000 WL 627640, at *6 (footnotes omitted). The Board agreed with the ALJ that (1) the General Counsel carried its burden of proof as to the elements of the requisite prima facie case, and (2) Interstate failed to establish that it would not have hired the applicants absent their affiliation with the Union.
The Board cited ample evidence supporting its conclusion that the General Counsel had carried its burden as to each element of its prima facie case. As to the first element, the Board noted the following: ' (1) Interstate had advertised its need for ironworkers; (2) Interstate stipulated that it hired 59 ironworkers between February 23 and September 15; and (3) Interstate continued to hire employees after refusing to hire the May 12 applicants. As to the second element, the Board noted that (1) the record establishes that the four applicants were experienced journeyman ironworkers, and (2) Interstate did not contend that the applicants were not qualified.. And as to the third element, the Board noted Young’s hostile reaction to the applicants’ attempts to submit their applications. It found especially pertinent Young’s questioning of the applicants as to their union status and his statement that they should “file another goddamn complaint.”
Once the General Counsel has established a prima facie case, the burden shifts to the company to demonstrate that it would not have hired the applicants absent their union affiliation or activities. Id.; Wright Line, 251 NLRB 1083, 1980 WL 12312 (1980), enfd. 662 F.2d 899 (1st Cir.1981), cert. denied 455 U.S. 989, 102 S.Ct. 1612, 71 L.Ed.2d 848 (1982). Substantial evidence clearly supports the Board’s conclusion that Interstate failed to carry this burden.
According to Interstate, “[t]he basis for the Company’s refusal to consider the employment applications submitted by five (5)[sic] individuals on May 10[sic] was that they sought to be represented by Union official John Hunter [sic] during the application process.” Respondent Br. at 25. While it is true that Napier sent the Union a letter articulating its firm policy of dealing directly with job applicants rather than with representatives, the existence of such a policy does not render the Board’s conclusion — that the proffered explanation was pretextual — incapable of satisfying a reasonable factfinder. See MJ Metal Products, 267 F.3d at 1065. Quite the contrary.
As the ALJ pointed out, evidence of Interstate’s anti-union animus was plentiful.12 We note that it included several violations of the NLRA that Interstate does not challenge before this court, but which the ALJ and the Board properly considered as circumstantial evidence of the employment decision at issue. Id. (“The NLRB may consider factors such as the employer’s knowledge of the employee’s union activities, the employer’s commission of other unfair labor practices, the timing of the employer’s action, and the credibility of its explanation of the reasons for the discharge.”) (emphasis added). Furthermore, as we have already discussed, the contemporaneous circum[1037]*1037stances of Interstate’s refusal to accept the written applications strongly supports an inference that the refusal was motivated by anti-union animus: Young interrogated the applicants about their union status, and in refusing to accept their written applications told them to “file another goddamn complaint.” Moreover, in response to Buntin’s direct question about the newspaper advertisement inviting applications, Interstate provided the applicants with a false explanation for its refusal to accept the written applications, i.e., that it was not hiring. See NLRB v. Dillon Stores, 643 F.2d 687, 693 (10th Cir.1987) (proffer of false reason supports inference that true reason is anti-union animus).
Under the applicable standard of review, the Board’s conclusion need only constitute a “plausible inference” from the evidence. MJ Metal Products, 267 F.3d at 1065. Interstate’s stated policy of dealing directly with applicants fails, by a wide margin, to render implausible the Board’s conclusion that anti-union animus motivated its refusal to consider the May 12 applicants. Accordingly, the NLRB is entitled to enforcement of this aspect of its July 31, 2001, order.
CONCLUSION
Based on the foregoing, we GRANT enforcement of the Board’s July 31, 2001 order.