Update at 4:57 p.m. ET. Federal Court Halts Execution:
With just hours to go, a federal court has halted the execution of Texas inmate Robert Campbell.
The execution would have been the first since Oklahoma botched one in April.
The ruling has nothing to do with the drug shortage that's dominated the narrative over the death penalty in the country. Instead, Campbell's lawyers argued that the state knew that Campbell was intellectually disabled but did not let his defense team know that.