Donald J. Trump and his allies have begun investigations to support their claims that Joseph R. Biden Jr. was incapacitated and his staff conspired to take presidential actions in his name.

President Joe Biden defended his use of an autopen in a recent NYT interview, offering insight into his administration’s reasoning behind the controversial practice.

Former President Joe Biden said in a new interview published on Sunday that he “consciously” made all of the clemency decisions during his presidency, a defense that comes as a House committee is probing the 46th president’s use of an autopen for the controversial pardons and commutations.