Does the Eighth Amendment prohibit the execution of an intellectually disabled death row inmate when clinical criteria and expert consensus establish intellectual disability under Atkins v. Virginia?

Where the clinical criteria unequivocally establish that a death row inmate is intellectually disabled, and where all the experts -including the expert retained by the State -agree that the inmate is intellectually disabled and thus ineligible for execution under this Court ’s decision in Atkins v Virginia and its progeny, does the Eighth Amendment bar the inmate ’s execution?