Majority opinion Justice Rehnquist delivered the Court opinion affirming Rummel's life sentence. At the outset, Rehnquist noted that Rummel did not challenge the general constitutionality of the three strikes law, only its application to his case, nor did Rummel challenge the classification of his current offense or either of his prior two offenses as felonies. The Court then noted that in
Graham v. West Virginia, a 1912 case which involved an individual convicted of three separate counts of horse thievery totaling $235 (only slightly more than the $230 total of Rummel's three offenses), Graham's life sentence was upheld. Rummel then attempted to challenge his sentence "on an alleged 'nationwide' trend away from mandatory life sentences and toward 'lighter, discretionary sentences'", and provided "detailed charts and tables documenting the history of recidivist statutes in the United States since 1776" in an attempt to show that "[n]o jurisdiction in the United States or the Free World punishes habitual offenders as harshly as Texas." The Court noted, however, that Washington and West Virginia also imposed mandatory life sentences for habitual offenders, so Texas was not as harsh as other states. The Court also noted that, although Rummel had no Constitutional right to a parole of his sentence, Texas had "a relatively liberal policy of granting "good time" credits to its prisoners, a policy that historically has allowed a prisoner serving a life sentence to become eligible for parole in as little as 12 years." The Court noted that this sentence was still not as harsh as Mississippi law, which imposed a life without parole sentence for three felony convictions where one was a violent felony, and upheld it.
Concurring opinion Justice Stewart (who also joined the majority opinion) noted that "[i]f the Constitution gave me a roving commission to impose upon the criminal courts of Texas my own notions of enlightened policy, I would not join the Court's opinion", indicating that he would not have upheld the sentence. However, as the question posed was "whether those procedures fall below the minimum level the [Constitution] will tolerate", Justice Stewart was "constrained to join the opinion and judgment of the Court."
Dissenting opinion Justice Powell delivered a dissenting opinion, arguing that "(i) the penalty for a noncapital offense may be unconstitutionally disproportionate, (ii) the possibility of parole should not be considered in assessing the nature of the punishment, (iii) a mandatory life sentence is grossly disproportionate as applied to petitioner, and (iv) the conclusion that this petitioner has suffered a violation of his
Eighth Amendment rights is compatible with principles of judicial restraint and federalism." Justice Powell focused the majority of his dissent on the second and third points. He noted that prior Court opinions ruled that prisoners had no Constitutional right to parole; thus, consideration of the possibility of parole should not be considered in determining whether a sentence was disproportionate. Justice Powell noted that "parole is simply an act of executive grace", and that in June 1979, the Governor of Texas refused to grant parole to 79% of state prisoners for which the parole board recommended release. Justice Powell also noted that 3/4 of the state legislatures had never instituted a three strikes law imposing a mandatory life sentence for two or more nonviolent offenses, and of the 12 states that had, only three (Texas, West Virginia, and Washington) still retained the law. Specifically, Justice Powell noted that the states of Kansas and Kentucky changed their laws to a more flexible sentencing scheme. Justice Powell also noted that the federal habitual offender law also did not impose a mandatory life sentence. ==Subsequent events==