Constitutional scholar Randy Barnett calls Biden's autopen use "the biggest constitutional scandal in US history" as questions arise about the legality of presidential actions.

Ky., used a digital signature to send out letters and subpoena notices related to the Biden autopen investigation.

Comer using an autopen to investigate an autopen is just so James," one House Democrat said, mocking the Oversight Committee chairman.

President Donald Trump has claimed that the thousands of pardons signed during the Biden administration are void, due to alleged autopen usage.

Former President Joe Biden, in an interview with the New York Times, said that he personally made every clemency and pardon decision during the end of his presidency.

The congressional investigation into the Biden White House’s autopen use could chip away at his last line of defense.

Former President Joe Biden blasted Republicans as “liars” for suggesting that his aides used an autopen to take actions without his knowledge, taking advantage of his diminished cognitive state, as the GOP continues to scrutinize his record at the direction of Donald Trump.