Sen. Josh Hawley (R-MO) on Wednesday called on former President Joe Biden to release internal records showing whether he personally authorized the use of a mechanical autopen to sign pardons and clemency grants amid mounting allegations that the device was frequently used even while Biden was present in Washington, D.C.

During a Senate hearing Wednesday into the alleged cover-up by Biden aides over the former president’s mental decline, Hawley pressed expert witness Theodore Wold over how the law governs autopen use, warning that if Biden never gave personal “consent” to its deployment on key executive actions, its use could amount to a constitutional breach.