The court's action means Victor Saldaño is likely to be executed even though both defense and state experts determined he was not eligible for execution under the law.
Justices on the high court will likely hear arguments in both of these cases in the fall and issue decisions by 2027.
The Supreme Court spared the life of an "intellectually disabled" death row inmate, dismissing an appeal by Alabama officials who claimed he is eligible for execution.
A divided Supreme Court has dismissed Alabama’s bid to be allowed to execute a convicted murderer who was found by lower courts to be intellectually disabled
Texas man who experts said was intellectually disabled is executed for retired professor's killing