| McKinney v. Arizona | |
|---|---|
 | |
| Argued December 11, 2019 Decided February 25, 2020 | |
| Full case name | James Erin McKinney v. State of Arizona |
| Docket no. | 18-1109 |
| Citations | 589 U.S. ___ (more) |
| Argument | Oral argument |
| Court membership | |
| |
| Case opinions | |
| Majority | Kavanaugh, joined by Roberts, Thomas, Alito, Gorsuch |
| Dissent | Ginsburg, joined by Breyer, Sotomayor, Kagan |
McKinney v. Arizona, 589 U.S. ___ (2020), is a Supreme Court of the United States decision concerning how an appellate court handles sentencing after an Edding's error is identified – an error in which a person deciding a sentence in a capital punishment does not consider all mitigating evidence. It ruled that the state appellate court, rather than a jury, should reweigh the mitigating and aggravating factors in a habeas corpus review.