CADY, Chief Justice.
In this appeal, we must decide if the district court erred in resentencing a defendant who was convicted as a juvenile of first-degree murder and mandatorily sentenced to life without parole after he claimed his sentence violated the constitutional prohibition against cruel and unusual punishment and after the Governor of Iowa commuted the sentence to sixty [110]*110years without parole. We conclude the district court properly resentenced the defendant. We affirm, the sentence imposed by the district court.
I. Background Facts and Proceedings.
Jeffrey Ragland was seventeen years old in 1986 when he and two friends attacked another group of boys in a grocery store parking lot in Council Bluffs. Ragland instigated the fight by making aggressive comments, while the boys in the other group attempted to avoid a conflict. Moments before the confrontation turned tragic, Ragland yelled either “Let’s do it” or “We’re gonna fight.” One of the boys with Ragland then promptly swung a tire iron he was carrying and struck one of the boys in the other group, Timothy Sieff, in the head. Sieff fell to the ground and subsequently died from the blow.
Ragland was charged with first-degree murder for Sieff s death and was prosecuted as an adult. Following a jury trial, he was found guilty of first-degree murder under the felony-murder doctrine. The district court then sentenced Ragland to a term of life in prison without parole. The sentence was mandatory under Iowa law. See Iowa Code § 902.1 (2013).1
Ragland has been incarcerated in the state penal system since his conviction. Now forty-four years old, he has pursued numerous postconviction relief actions in state and federal court during his imprisonment, including an application to correct his sentence. In 2012, we responded to this application by directing the district court to consider whether the mandatory life sentence without parole Ragland was serving constituted cruel and unusual punishment under the State and Federal Constitutions. We remanded the case to the district court to conduct a hearing on the question.2 State v. Ragland, 812 N.W.2d 654, 659 (Iowa 2012).
On June 25, 2012, shortly after our directive for the district court to consider the constitutionality of Ragland’s sentence, but prior to the hearing, the United States Supreme Court decided Miller v. Alabama, 567 U.S. -, 132 S.Ct. 2455, 183 L.Ed.2d 407 (2012). The Court held the Eighth Amendment prohibited “a sentencing scheme that mandates life in prison without possibility of parole for juvenile offenders.” Id. at -, 132 S.Ct. at 2469, 183 L.Ed.2d at 424. The Court found that defendants who committed homicide crimes as juveniles and faced a sentence of life without parole were entitled to a sentencing hearing that would permit the sentencing court to consider the individual characteristics of the defendant and the individual circumstances of the crime as mitigating factors for a lesser sentence. See id. at -, 132 S.Ct. at 2475, 183 L.Ed.2d at 418.
The district court scheduled a hearing on the application for resentencing filed by Ragland for August 28. On July 26, however, the Governor of Iowa commuted Ragland’s sentence, as well as the sentences of thirty-seven other inmates in Iowa’s prison system who, like Ragland, [111]*111had received statutorily mandated sentences of life without parole for crimes committed as juveniles. For all thirty-eight defendants, the Governor commuted the sentences to life with no possibility for parole for sixty years and directed that no credit be given for earned time. The full text of the commutation provides:
WHEREAS, in the recent case of Miller v. Alabama the United States Supreme Court ruled that states cannot mandate life sentences without the possibility of parole for murderers who committed their crimes before the age of eighteen; and
WHEREAS, now after the Court’s ruling, up to 38 dangerous juvenile murderers will seek resentencing and more lenient sentences; and
WHEREAS, it is a serious violation of federalism for the federal supreme court to throw out long-standing Iowa sentences; and
WHEREAS, the Eighth Amendment to the United States Constitution prohibits “cruel and unusual punishments,” which allows the Court to ensure the method of punishment does not violate constitutional rights, but does not allow them to substitute their own judgment for that of the duly-elected legislature on issues of proportionality and public safety; and
WHEREAS, in the Miller v. Alabama opinion the Court used “evolving standards of decency that mark the progress of a maturing society” to justify their decision, but ignored the fact that first degree murder itself violates the most fundamental right of a free society — the right to live; and
WHEREAS, unlike elected and accountable Iowa legislators, the Supreme Court has not had the opportunity to hear from the friends and family members of the victims of first degree murderers, nor do they live in the Iowa communities affected by their ruling; and
WHEREAS, first degree murder is an intentional and premeditated crime and those who are found guilty are dangerous and should be kept off the streets and out of our communities; and
WHEREAS, the penalty for second degree murder, a lesser offense, is fifty years in prison; and
WHEREAS, an appropriate sentence for first degree murder is life in prison, evidenced by the fact that when the General Assembly changed criminal penalties for other crimes committed before the age of eighteen the sentence for first degree murder was not changed; and
WHEREAS, after the decision in Miller v. Alabama, the decision about whether a juvenile first degree murderer will be released, or remain in prison, is taken away from the legislature, and given to judges, it is imperative that action is taken to ensure our public safety.
KNOW YE, that by virtue of the authority vested in me by the laws of the Constitution of the State of Iowa, I, Terry E. Branstad, Governor of the State of Iowa, do hereby COMMUTE the sentence of Jeffrey K. Ragland # 0808013, who after being found guilty of the crime of Murder in the First Degree in violation of Iowa Code section 707.2 from events occurring on or about August 16, 1986 was transferred by order of the Pottawattamie County Court to the custody of the Iowa Department of Corrections for a term of imprisonment of life without opportunity for parole, to a term of life with no possibility for parole or [112]*112work release for sixty (60) actual years, with no credit for earned time.
At the hearing before the district court on August 28, Ragland argued he should still be resentenced under Miller. He claimed the commutation of his sentence by the Governor was unconstitutional because it failed to follow the individualized considerations mandated by Miller.
Several persons testified at the resen-tencing hearing that they believed Rag-land’s sentence should be lessened. John Nelson Sr., owner of a business called SilverStone Group, testified he had hired one of Ragland’s codefendants, Robert Lamkins, following the incident. Lamkins worked in Nelson’s office, and Nelson helped Lamkins pay for college. Nelson considered Lamkins a successful rehabilitation. Nelson testified he would gladly hire Ragland upon release from prison. Patrick Hanafan, Mayor of Council Bluffs, also voiced testimony supportive of Rag-land’s release from prison.
Ragland’s brother, Ronald Ragland Jr., testified that a support network would be in place for Ragland upon Ragland’s release, as well as living arrangements and a vehicle. Additionally, he testified that he has developed a friendship with the victim’s older brother, Ben.
Ragland’s companions during the fateful fight in 1986, Matt Gill and Robert Lam-kins, sent letters to County Attorney Matt Wilber. Gill’s letter is particularly poignant. Gill wrote that he was “solely responsible for the death of Timothy Sieff.” He expressed remorse for causing Sieff s death and stated that he pled guilty to second-degree murder and served just three years in prison. He continued:
As I understand it, part of the rationale for [charging Ragland with first-degree murder] from the prosecutor at the time is that Jeff Ragland was painted as the “Ring Leader” and the prosecutor believed that the fight would not have happened if it were not for Jeff being there. At times they made it sound like the rest of us that were there that night were somehow victims of being in the wrong place at the wrong time and had the bad luck of being with Jeff Ragland who was just out looking for a fight. This is just absolutely not true. Jeff was not a “Ring Leader” who somehow caused us to be willing and ready to get into a fight that we would have otherwise never engaged in. The time and place in which we grew up coupled with the fact that we were young, impulsive 17 year olds with poor judgment are the reasons we were willing to engage in a fight, not because we were unlucky enough to be with Jeff Ragland. In fact, looking back on it now it is glaringly obvious that it was Jeff who was unlucky to be with me that night, not the other way around. Jeff had only been with us for less than 30 minutes that night, yet he is still in prison 26 years later because of the terrible decisions I made.
Gill closed by conveying gratitude for the second chance he received. He also expressed hope that Ragland would receive a similar opportunity for rehabilitation. “Keeping Jeff Ragland in prison will ... not bring back Timothy Sieff or undo what was done on that terrible night in 1986,” Gill wrote. “How can it be that I, the person who is actually directly responsible for Timothy Sieff s death was given a second chance and am allowed to live freely in society, but Jeff Ragland is not?”
After considering the testimony provided at the hearing, the district court found the Governor exceeded his authority by commuting the sentence because the commutation circumvented the individualized sentencing required under Miller and deprived Ragland of a meaningful opportunity to demonstrate his maturity and reha[113]*113bilitation. The district court resentenced Ragland to life in prison with the possibility of parole after twenty-five years.3 Consequently, the new sentence imposed by the district court made Ragland immediately eligible for parole.
The State sought discretionary review, which we granted. On review, the State argues that the Governor was authorized to commute the sentence and the district court was required to accept the commuted sentence as the launching point for the application for resentencing. Thus, the State argues Ragland was no longer serving a life sentence without parole at the time of resentencing, and the individualized sentencing considerations of Miller, accordingly, were no longer applicable to him. As a result, the State contends re-sentencing was improper because the sentence that Ragland was serving was no longer illegal. Ragland argues the Governor had no authority to use his commutation powers to circumvent the constitutional requirements of Miller that entitled him to be resentenced by the court under a process that would consider and account for the individualized attributes of youth in mitigation of punishment. Ragland, however, did not challenge the new sentence imposed by the district court.
II. Scope of Review.
A challenge to an illegal sentence is reviewed for correction of legal errors. State v. Valin, 724 N.W.2d 440, 444 (Iowa 2006); see also Iowa R.App. P. 6.907. When, as here, the defendant mounts a constitutional challenge to an allegedly illegal sentence, the standard of review is de novo. State v. Oliver, 812 N.W.2d 636, 689 (Iowa 2012); State v. Bruegger, 773 N.W.2d 862, 869 (Iowa 2009).
Ragland challenges his sentence under both the Eighth Amendment to the United States Constitution4 and article I, section 17 of the Iowa Constitution.5 Ragland does not suggest application of a standard under article I, section 17 other than the standard employed by the United States Supreme Court under the Eighth Amendment. Accordingly, we use the federal substantive standard of cruel and unusual punishment but reserve the right to apply the standard in a more stringent fashion than federal precedent. See Bruegger, 773 N.W.2d at 883.
III. Discussion.
The State argues Miller does not apply to Ragland because the Governor commuted the sentence to a term less than life without parole. Ragland argues both his original sentence and his sentence, as commuted, are unconstitutional. Ragland’s argument is built on the premise that Miller applies retroactively on collateral review of [114]*114other mandatory life-without-parole sentences for defendants who committed a homicide as a juvenile. Thus, we must first determine if Miller applies retroactively.
A. Retroactive Application of Miller. We recognize an absence of definite authority addressing whether Miller applies retroactively to cases on collateral review. Yet, we primarily focus our inquiry on the Miller decision itself because equal justice requires that when a new substantive rule is applied to a defendant in the case announcing the new rule, the rule must “be applied retroactively to all who are similarly situated.” Teague v. Lane, 489 U.S. 288, 300, 109 S.Ct. 1060, 1070, 103 L.Ed.2d 334, 349 (1989). Thus, it is important to carefully scrutinize the Miller decision when considering whether it applies retroactively because a new rule announced by the Supreme Court does not become retroactive by subsequent decisions of other courts, but by the action taken by the Supreme Court in the case announcing the new rule. Tyler v. Cain, 533 U.S. 656, 663, 121 S.Ct. 2478, 2482, 150 L.Ed.2d 632, 642 (2001).
The competing arguments over the retroactivity of Miller essentially narrow the inquiry to whether the decision merely established a new penalty-phase procedure for courts to follow before imposing a life sentence without parole for crimes committed by juveniles or whether the decision established either a substantive rule of law or one that implicates fundamental fairness and accuracy of the criminal proceeding. See Teague, 489 U.S. at 307-10, 109 S.Ct. at 1073-75, 103 L.Ed.2d at 353-56 (discussing two situations in which new constitutional rules will be given retroactive application). Normally, procedural changes do not apply retroactively, while substantive rules of law and watershed rules of criminal procedure have retroactive application. See Perez v. State, 816 N.W.2d 354, 358 (Iowa 2012).
In Miller, the Court held that mandatory sentences of life without parole are unconstitutional for juveniles prosecuted as adults. 567 U.S. at -, 132 S.Ct. at 2469, 183 L.Ed.2d at 424. The decision is rooted in the Eighth Amendment and built primarily on the Court’s prior jurisprudence in Graham v. Florida, 560 U.S. 48, 130 S.Ct. 2011, 176 L.Ed.2d 825 (2010); Roper v. Simmons, 543 U.S. 551, 125 S.Ct. 1183, 161 L.Ed.2d 1 (2005); and Thompson v. Oklahoma, 487 U.S. 815, 108 S.Ct. 2687, 101 L.Ed.2d 702 (1988). See Miller, 567 U.S. at -, 132 S.Ct. at 2463, 183 L.Ed.2d at 417-18. These decisions identified “two strands of precedent” reflecting a need for “proportionate punishment.” Id. at -, 132 S.Ct. at 2463, 183 L.Ed.2d at 417.
The first strand of cases involved “categorical bans on sentencing practices based on mismatches between culpability of a class of offenders and the severity of a penalty.” Id.; see also Graham, 560 U.S. at -, 130 S.Ct. at 2034, 176 L.Ed.2d at 850 (“The Constitution prohibits the imposition of a life without parole sentence on a juvenile offender who did not commit homicide.”); Kennedy v. Louisiana, 554 U.S. 407, 446, 128 S.Ct. 2641, 2664, 171 L.Ed.2d 525, 555 (2008) (holding the Eighth Amendment forbids imposition of the death penalty for crimes in which the offender did not kill the victim or intend the victim to die); Roper, 543 U.S. at 578, 125 S.Ct. at 1200, 161 L.Ed.2d at 29 (“The Eighth and Fourteenth Amendments forbid imposition of the death penalty on offenders who were under the age of 18 when their crimes were committed.”); Atkins v. Virginia, 536 U.S. 304, 321, 122 S.Ct. 2242, 2252, 153 L.Ed.2d 335, 350 (2002) (“[W]e ... conclude ... the Constitution ‘places a substantive restriction on [115]*115the State’s power to take the life’ of a mentally retarded offender.” (quoting Ford v. Wainwright, 477 U.S. 399, 405, 106 S.Ct. 2595, 2599, 91 L.Ed.2d 335, 344 (1986))); Thompson, 487 U.S. at 838, 108 S.Ct. at 2700, 101 L.Ed.2d at 720 (“[T]he Eighth and Fourteenth Amendments prohibit the execution of a person who was under 16 years of age at the time of his or her offense.”).
The second strand of cases prohibited mandatory capital punishment by “requiring that sentencing authorities consider the characteristics of a defendant and the details of his offense before sentencing him to death.” Miller, 567 U.S. at -, 132 S.Ct. at 2463-64, 183 L.Ed.2d at 418; see also Lockett v. Ohio, 438 U.S. 586, 604, 98 S.Ct. 2954, 2964-65, 57 L.Ed.2d 973, 990 (1978) (“[W]e conclude that the Eighth and Fourteenth Amendments require that the sentencer, in all but the rarest kind of capital case, not be precluded from considering, as a mitigating factor, any aspect of a defendant’s character or record and any of the circumstances of the offense that the defendant proffers as a basis for a sentence less than death.” (Footnote omitted.)); Woodson v. North Carolina, 428 U.S. 280, 304, 96 S.Ct. 2978, 2991, 49 L.Ed.2d 944, 961 (1976) (“[W]e believe that in capital cases the fundamental respect for humanity underlying the Eighth Amendment requires consideration of the character and record of the individual offender and the circumstances of the particular offense as a constitutionally indispensable part of the process of inflicting the penalty of death.” (Citation omitted.)).
To implement its substantive constitutional prohibition against mandatory life-without-parole sentences, Miller requires courts to establish a procedure providing for an individualized sentencing hearing tailored to the unique attributes of juveniles when prosecuted as adults for homicide and facing a sentence of life without parole.6 See 567 U.S. at -, 132 S.Ct. at 2471, 183 L.Ed.2d at 426. While Graham flatly prohibits the imposition of a life-without-parole sentence for a nonhomicide crime committed by a juvenile in order to afford the juvenile a meaningful opportunity to gain release in the future based on maturity and rehabilitation, 560 U.S. at -, 130 S.Ct. at 2030, 176 L.Ed.2d at 846, Miller prohibits mandatory life-without-parole sentences for juveniles, but would seemingly permit life-without-parole sentences that are not mandated by statute if the sentencing court has the power to consider the attributes of youth in the mitigation of punishment, see 567 U.S. at -, 132 S.Ct. at 2469, 183 L.Ed.2d at 423-24.
From a broad perspective, Miller does mandate a new procedure. Yet, the procedural rule for a hearing is the result of a substantive change in the law that prohibits mandatory life-without-parole sentencing. Thus, the case bars states from imposing a certain type of punishment on certain people. See Schriro v. Summerlin, 542 U.S. 348, 352, 124 S.Ct. 2519, 2522, 159 [116]*116L.Ed.2d 442, 448 (2004) (recognizing rules placing certain groups beyond the power of the state to punish are given retroactive application). “Such rules apply retroactively because they ‘necessarily carry a significant risk that a defendant’ ... faces a punishment that the law cannot impose upon him.” See id. at 352, 124 S.Ct. at 2522-23, 159 L.Ed.2d at 448 (quoting Bousley v. United States, 523 U.S. 614, 620, 118 S.Ct. 1604, 1610, 140 L.Ed.2d 828, 838-39 (1998)).
More specifically, the cases used by the Court in Miller to support its holding have been applied retroactively on both direct and collateral review. See In re Sparks, 657 F.3d 258, 261-62 (5th Cir.2011) (indicating Graham was made retroactive on collateral review by the Supreme Court as a matter of logical necessity under Tyler); see also Tyler, 533 U.S. at 669, 121 S.Ct. at 2486, 150 L.Ed.2d at 646-47 (O’Connor, J., concurring) (describing the syllogistic relationship between Teague’s exception to nonretroactivity for rules placing certain conduct beyond the power of the state to proscribe and subsequent cases that fit into Teague’s exception); Penry v. Lynaugh, 492 U.S. 302, 330, 109 S.Ct. 2934, 2953, 106 L.Ed.2d 256, 285 (1989) (“[T]he first exception set forth in Teague should be understood to cover not only rules forbidding criminal punishment of certain primary conduct but also rules prohibiting a certain category of punishment for a class of defendants because of their status or offense.”), abrogated on other grounds by Atkins, 536 U.S. at 321, 122 S.Ct. at 2252, 153 L.Ed.2d at 350. We joined this discourse three years ago when we held Graham applied retroactively. Bonilla v. State, 791 N.W.2d 697, 700-01 (Iowa 2010). This practical observation of the treatment of the underlying authority of Miller is instructive. If a substantial portion of the authority used in Miller has been applied retroactively, Miller should logically receive the same treatment.
The procedural posture of the Miller decision further supports retroactive application. Miller involved the companion case of Jackson v. Hobbs. See Miller, 567 U.S. at -, 132 S.Ct. at 2461-62, 183 L.Ed.2d at 415-16. Miller was a direct appeal, but Jackson involved a petition for habeas corpus brought after the conviction had been affirmed on direct appeal. See id. Nevertheless, the Supreme Court specifically held the new rule applied not only to the defendant in Miller, but also to the defendant in Jackson on collateral review. See id. at -, 132 S.Ct. at 2475, 183 L.Ed.2d at 430. The Court directed that the defendant in Jackson be given an individualized hearing. See id. There would have been no reason for the Court to direct such an outcome if it did not view the Miller rule as applying retroactively to cases on collateral review. We also recognize that the dissent in Miller suggested the majority’s decision would invalidate other cases across the nation. See id. at -, 132 S.Ct. at 2479-80, 183 L.Ed.2d at 433 (Roberts, C.J., dissenting). Again, the dissent would not have raised this concern if the Court did not believe its holding applied to cases on collateral review.
Some courts in other jurisdictions agree that Miller applies retroactively to defendants whose direct appeals have been exhausted. See People v. Williams, 367 Ill. Dec. 503, 982 N.E.2d 181, 196-97 (Ill.App.Ct.2012); State v. Simmons, 99 So.3d 28 (La.2012); Jones v. State, — So.3d-, -, 2013 WL 3756564, at *5 (Miss.2013). A panel for the Eighth Circuit permitted a prisoner to raise a second or successive challenges to his sentence based on Miller, reasoning the prisoner successfully made out a prima facie case that Miller articulated “a new rule of constitutional law, made retroactive to cases on collateral re[117]*117view by the Supreme Court, that was previously unavailable.” See Johnson v. United States, 720 F.3d 720, 720 (8th Cir.2013) (per curiam); see also 28 U.S.C. § 2255(h)(2) (2006 & Supp. Ill 2010) (permitting prisoners to file second or successive challenges to their sentences when their sentence is in violation of “a new rule of constitutional law, made retroactive to cases on collateral review by the Supreme Court, that was previously unavailable”). Other jurisdictions have held Miller applies retroactively in a temporal sense at least to cases currently on direct appeal, without further considering whether Miller applies retroactively to all defendants. Commonwealth v. Lofton, 57 A.3d 1270, 1276 & n. 2 (Pa.Super.2012) (holding Miller created a new rule and applies to all cases pending on direct appeal); People v. Banks, — P.3d -, -, 2012 WL 4459101, at *20 (Colo.App.2012) (same). In contrast, other jurisdictions have held Miller does not recognize a new substantive rule of law under the Eighth Amendment but simply requires a new procedure; accordingly, those courts have held Miller is not retroactive. See, e.g., In re Morgan, 713 F.3d 1365, 1367-68 (11th Cir.2013); Craig v. Cain, No. 12-30035, 2013 WL 69128, at *2 (5th Cir. Jan. 4, 2013) (unpublished opinion); Geter v. State, 115 So.3d 375, 385 (Fla.Dist.Ct.App.2012); People v. Carp, 298 Mich.App. 472, 828 N.W.2d 685, 715 (2012).
On balance, we think the best analysis of the issue is found in an article by Dean Erwin Chemerinsky. He stated:
There is a strong argument that Miller should apply retroactively: It says that it is beyond the authority of the criminal law to impose a mandatory sentence of life without parole. It would be terribly unfair to have individuals imprisoned for life without any chance of parole based on the accident of the timing of the trial.
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... [T]he Miller Court did more than change procedures; it held that the government cannot constitutionally impose a punishment. As a substantive change in the law which puts matters outside the scope of the government’s power, the holding should apply retroactively.
Erwin Chemerinsky, Chemerinsky: Juvenile Life-Without-Parole Case Means Courts Must Look at Mandatory Sentences, A.B.A. J. Law News Now, (Aug. 8, 2012, 8:30 AM), http://www.abajournal. com/ news/ article/Chemerinsky_juvenile_ life-without-parole_case_means_courts_ must_look_at_sen/.
Accordingly, we hold Miller applies retroactively. We next consider whether Ragland’s sentence, as commuted by the Governor, rendered Miller inapplicable to Ragland.
B. Effect of Commutation. Ragland primarily argues he is entitled to the constitutional benefits of Miller because the Governor was not authorized to commute his sentence so as to avoid Miller’s application. The State responds by claiming the district court unconstitutionally intruded on the authority of the Governor by refusing to give effect to the commutation.
It is a fundamental principle that one branch of government is not permitted to intrude upon the powers of another branch of government. This principle is inscribed in article III, section 1 of our Iowa Constitution. Yet, we have also recognized that the separation of powers doctrine is not drawn with “rigid boundaries.” Klouda v. Sixth Judicial Dist. Dep’t of Corr. Servs., 642 N.W.2d 255, 260 (Iowa 2002). “Instead, some acts can be properly entrusted to more than one branch of government, and some functions inevitably intersect.” State v. Hoegh, 632 N.W.2d 885, 889 (Iowa 2001). This observation [118]*118underscores an often overlooked, but important, principle of good governance, which is that “harmonious cooperation among the three branches of government is fundamental to our system of government.” Webster Cnty. Bd. of Supervisors v. Flattery, 268 N.W.2d 869, 874 (Iowa 1978). The construct of the separation of powers doctrine reveals that two branches of government can both be properly exercising their powers while working in the same arena.
Our constitution grants the Governor broad authority concerning commutations and pardons. Article IV, section 16 specifically provides that “[t]he governor shall have power to grant reprieves, commutations and pardons, after conviction, for all offences except treason and cases of impeachment, subject to such regulations as may be provided by law.” Iowa Const, art. IV, § 16.
A commutation, the action taken by the Governor in this case, is “[t]he executive’s substitution in a particular case of a less severe punishment for a more severe one that has already been judicially imposed on the defendant.” Black’s Law Dictionary 318 (9th ed.2009); see also People v. Mata, 217 Ill.2d 535, 299 Ill.Dec. 649, 842 N.E.2d 686, 691 (2005) (“[I]t is axiomatic from the plain language of this constitutional provision that the Governor cannot use the commutation power to increase a defendant’s punishment.” (Emphasis added.)); Lee v. Murphy, 63 Va. (22 Gratt.) 789, 798 (1872) (“A commutation is the substitution of a less for a greater punishment....”). The power to commute sentences includes the power to impose “conditions which do not in themselves offend the Constitution, but which are not specifically provided for by statute.” Schick v. Reed, 419 U.S. 256, 264, 95 S.Ct. 379, 384, 42 L.Ed.2d 430, 437 (1974). Yet, the power to commute a sentence is not without limitation and does not foreclose legal challenges. See Arthur v. Craig, 48 Iowa 264, 268 (1878); see also Iowa Const. art. IV, § 16 (stating the power to commute is subject to regulations provided by law).
Nevertheless, we do not believe it is necessary to traipse into this constitutional thicket. If possible, we should avoid constitutional confrontation between two branches of government. See, e.g., Schwarzkopf v. Sac Cnty. Bd. of Supervisors, 341 N.W.2d 1, 6 (Iowa 1983) (“We must, of course, guard against overextension of legislative powers; we must also, however, avoid our own infringement upon the constitutional powers of the legislature in our efforts to protect our own.”).
Even if we accept that the Governor had the authority to exercise the power to commute under the circumstances of this case, the question remains whether the commuted sentence amounts to mandatory life without parole. If so, Miller applied, and the district court was required to resentence Ragland after providing the individualized sentencing hearing.
Miller applies to life sentences without parole that were mandatorily imposed. Thus, we must consider if Ragland is serving a life sentence without parole and if his sentence was mandatory. We first consider the mandatory nature of the sentence.
Murder in the first degree is a class “A” felony in Iowa. Iowa Code § 707.2(6). The only sentence provided by our legislature for a class “A” felony is for the offender to be committed to the department of corrections “for the rest of the defendant’s life.” Id. § 902.1(1). No other sentencing option is available. See id. The sentencing court has no power to defer the judgment, defer the sentence, suspend the sentence, or reconsider the sentence. Id. Additionally, the defendant cannot “be released on pa[119]*119role unless the governor commutes the sentence to a term of years.” Id. This sentencing scheme was in place when Rag-land received his sentence, just as it is today. Compare Iowa Code § 902.1 (1987), with id. § 902.1(1) (2013).
Clearly, the original sentence imposed on Ragland by the district court was a mandatory sentence. The sentencing court had no other option but to impose the one sentence provided by law. This result is important in the analysis because it goes to the heart of Miller, which states that “children are constitutionally different from adults for purposes of sentencing,” and a mandatory life sentence without parole imposed on juveniles means young offenders “die in prison even if [the sentencing judge] would have thought that his youth and its attendant characteristics ... made a lesser sentence ... more appropriate.” Miller, 567 U.S. at -, 132 S.Ct. at 2460, 2464, 183 L.Ed.2d at 414, 418. Importantly, the mandatory penalty component totally precludes the sentencing court from taking the critical aspects of youth into account in the imposition of a sentence. Id. at -, 132 S.Ct. at 2466, 183 L.Ed.2d at 420.
The commutation by the Governor of Ragland’s sentence to a term of years did not affect the mandatory nature of the sentence or cure the absence of a process of individualized sentencing considerations mandated under Miller. Miller protects youth at the time of sentencing. See id. at -, 132 S.Ct. at 2468, 183 L.Ed.2d at 422-23 (explaining the factors that must be considered by the sentencing court at the time of sentencing). Even with the commutation in 2012 by the Governor, Ragland has been deprived of the constitutional mandate that youths be sentenced pursuant to the Miller factors.7
Having concluded Ragland is serving a mandatory sentence, we next analyze whether the sentence, as commuted, remains a life-without-parole sentence targeted by Miller. One question that has clearly emerged following Miller is whether its mandates apply not only to mandatory life sentences without parole, but also to the practical equivalent of life-without-parole sentences. This is an issue that has been presented to us in various forms in other recent cases in which we have attempted to develop the proper constitutional framework for the sentencing of juvenile offenders as adults. See State v. Null, 836 N.W.2d 41, 45-77 (Iowa 2013); State v. Pearson, 836 N.W.2d 88, 89-98 (Iowa 2013).
Ragland must serve sixty years of his sentence before he may be considered for parole. While this sentence is not a life term, Ragland will not be eligible for parole until he is seventy-eight years old. Under standard mortality tables, his life expectancy is 78.6 years. Ragland argues his sentence is the functional equivalent of life -without parole. The State responds that the dictates of Miller do not apply [120]*120because Ragland has a chance of becoming eligible for parole during his natural lifetime under the commuted sentence.
The precise question we now consider is one not many other courts have confronted. It is unique and comes before us due to the post-Miller intervention of a commutation of the sentence from life without parole to life without parole for sixty years. Thus, we look to analogous circumstances to help decide the question.
Some courts in other states have observed in addressing the new sentencing process following Miller that the mere possibility of parole for a juvenile offender sentenced by the court to life without parole, provided by the overall sentencing scheme through clemency or commutation, does not mean the sentence avoids the mandates of Miller as a life sentence with parole. See Parker v. State, 119 So.3d 987, 997 (Miss.2013) (holding a life sentence with an opportunity for “conditional release” on parole at age sixty-five falls within Miller); Bear Cloud v. State, 294 P.3d 36, 45 (Wyo.2013) (holding a life sentence that provides an opportunity for parole only upon commutation of the sentence to a term of years by the governor is practically identical to life imprisonment without parole). The mere possibility of commutation or clemency is fundamentally distinct from the eligibility for parole and does not leave a juvenile offender a meaningful opportunity to avoid a lifetime of incarceration. See Salem v. Helm, 463 U.S. 277, 300-01, 103 S.Ct. 3001, 3015, 77 L.Ed.2d 637, 656 (1983) (distinguishing the constitutional impact of parole eligibility and the possibility of commutation because “[pjarole is a regular part of the rehabilitative process,” but a “[commutation, on the other hand, is an ad hoc exercise of executive clemency”).
Yet, an early split in authority has emerged among other courts over the question of whether Graham applies to long sentences that are less than life without parole. In People v. Caballero, the California Supreme Court held a 110-year-to-life sentence contravened the mandate of Graham that the Eighth Amendment requires a “ ‘meaningful opportunity to obtain release based on demonstrated maturity and rehabilitation.’ ” 55 Cal.4th 262, 145 Cal.Rptr.3d 286, 282 P.3d 291, 296 (2012) (quoting Graham, 560 U.S. at -, 130 S.Ct. at 2030, 176 L.Ed.2d at 845-46). The court found the bar on life-without-parole sentences under Graham included sentences for a term of years that amounted “to the functional equivalent of a life without parole sentence.” Id. at 295. In People v. Rainer, a Colorado court held a sentence for a term of years that does not offer the possibility of parole until after life expectancy also violates the mandate in Graham for a meaningful opportunity to obtain release. — P.3d-,-, 2013 WL 1490107, at *4 (Colo.App.2013).
On the other hand, in Bunch v. Smith, the Sixth Circuit Court of Appeals held that Graham did not apply to a juvenile sentence to consecutive terms totaling eighty-nine years. 685 F.3d 546, 550-51 (6th Cir.2012), cert. denied, 569 U.S. -, 133 S.Ct. 1996, 185 L.Ed.2d 865 (2013). The Sixth Circuit simply employed a strict reading of Graham and limited the holding in Graham to scenarios dealing with life-without-parole sentences. See id.-, see also State v. Kasic, 228 Ariz. 228, 265 P.3d 410, 414-16 (Ariz.Ct.App.2011) (rejecting juvenile defendant’s argument that thirty-two consecutive sentences, which in the aggregate exceeded the defendant’s normal life expectancy, constituted a de facto life sentence); Henry v. State, 82 So.3d 1084, 1089 (Fla.Dist.Ct.App.2012) (rejecting defendant’s argument that nine sentences, which in the aggregate constituted [121]*121107 years of incarceration without the possibility of parole, constituted a de facto life sentence).
We acknowledge the Court denied cer-tiorari in Bunch; however, the Court in Bunch was confined to a very narrow standard of review. The Antiterrorism and Effective Death Penalty Act of 1996 allowed the Court to grant habeas corpus relief only if the state court decision on review was contrary to clearly established federal law or was an unreasonable application of federal law. 28 U.S.C. § 2254(d)(1) (2006). The acknowledged split of authority reveals that the argument made by the defendant in Bunch for a virtual life sentence was not clearly established. See Bunch, 685 F.3d at 552; see also Rainer, — P.3d at -, 2013 WL 1490107, at *9-10 (reviewing and summarizing the split of authority over the question of whether Graham should apply to sentences for a term of years that are not materially distinguishable from life without parole). Thus, the narrow standard of review would not have permitted the United States Supreme Court to fully address the issues on certiorari.
For all practical purposes, the same motivation behind the mandates of Miller applies to the commuted sentence in this case or any sentence that is the practical equivalent to life without parole. See Miller, 567 U.S. at -, 132 S.Ct. at 2469, 183 L.Ed.2d at 424 (recognizing children’s diminished culpability and heightened capacity for change make the harshest penalty appropriate in only certain and uncommon instances). Graham requires a “meaningful opportunity to obtain release based on demonstrated maturity and rehabilitation” during the offender’s expected lifetime, and Miller requires an individualized consideration of youth as a mitigating factor at a sentencing hearing if such a realistic, meaningful opportunity will not be available. See Miller, 567 U.S. at -, 132 S.Ct. at 2469, 183 L.Ed.2d at 424; Graham, 560 U.S. at -, 130 S.Ct. at 2030, 176 L.Ed.2d at 845-46. After all, “[l]ife without parole ‘forswears altogether the rehabilitative ideal.’ It reflects ‘an irrevocable judgment about [an offender’s] value and place in society,’ at odds with a child’s capacity for change.” Miller, 567 U.S. at -, 132 S.Ct. at 2465, 183 L.Ed.2d at 419-20 (quoting Graham, 560 U.S. at -, 130 S.Ct. at 2030, 176 L.Ed.2d at 845).
Thus, the rationale of Miller, as well as Graham, reveals that the unconstitutional imposition of a mandatory life-without-parole sentence is not fixed by substituting it with a sentence with parole that is the practical equivalent of a life sentence without parole. Oftentimes, it is important that the spirit of the law not be lost in the application of the law. This is one such time. The spirit of the constitutional mandates of Miller and Graham instruct that much more is at stake in the sentencing of juveniles than merely making sure that parole is possible. In light of our increased understanding of the decision making of youths, the sentencing process must be tailored to account in a meaningful way for the attributes of juveniles that are distinct from adult conduct. At the core of all of this also lies the profound sense of what a person loses by beginning to serve a lifetime of incarceration as a youth.
In the end, a government system that resolves disputes could hardly call itself a system of justice with a rule that demands individualized sentencing considerations common to all youths apply only to those youths facing a sentence of life without parole and not to those youths facing a sentence of life with no parole until age seventy-eight. Accordingly, we hold Miller applies to sentences that are the functional equivalent of life without [122]*122parole. The commuted sentence in this case is the functional equivalent of a life sentence without parole.
Ragland was originally sentenced without the benefit of an individualized sentencing hearing. The commutation lessened his sentence slightly, but without the court’s consideration of any mitigating factors as demanded by Miller. While such a review process might still permit a life-without-parole sentence to be imposed in a murder case, it might also result in a sentence far less than life without parole. Thus, Ragland was entitled to be sentenced with consideration of the factors identified in Miller. Additionally, he was entitled to be resentenced under the individualized process because Miller applies retroactively.
Accordingly, Ragland’s commutation did not remove the case from the mandates of Miller. The sentence served by Ragland, as commuted, still amounts to cruel and unusual punishment under the Eighth Amendment to the United States Constitution and article I, section 17 of the Iowa Constitution. Consequently, the district court properly resentenced Ragland in light of Miller. Because the new sentence was not challenged on appeal, we do not address it in any way except to reiterate that Miller requires individualized resen-tencing.
IV. Conclusion.
We affirm the new sentence imposed by the district court following the Governor’s commutation of the defendant’s sentence.
AFFIRMED.
All justices concur, but WIGGINS, J., writes separately to concur specially; MANSFIELD, J., joined by WATERMAN, J., writes separately to concur specially; and ZAGER, J., writes separately to concur specially.