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

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.

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

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

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.

Former President Joe Biden did not closely review every case included in his sweeping end-of-term clemency spree and instead delegated vast authority to aides to handle the process, including to then-chief of staff Jeff Zients,

Facing questions about his mental acuity, the former president told The New York Times he made all clemency decisions.