Ewing v. California is a landmark Supreme Court case from 2003 that addressed the constitutionality of California's three strikes law, which imposes harsher sentences on repeat offenders. The case involved Gary Ewing, who received a 25 years to life sentence for stealing golf clubs under this law. This decision highlighted the tension between state interests in reducing crime through tougher sentencing and the Eighth Amendment's prohibition against cruel and unusual punishment.