Trump has repeatedly referred to Biden's use of the autopen as "one of the biggest scandals" in political history.

Republican lawmakers have dubbed the revelation a "constitutional scandal" and called for the investigation of thousands of documents signed by Biden during his tenure. President Donald Trump admitted to using an autopen days after attacking former president Joe Biden of doing the same to issue a series of pardons.

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.

The joke was in poor taste given that Trump admitted to using an autopen to sign various documents during an interview with NBC news

The House Oversight Committee released footage of former Biden aide Anthony Bernal repeatedly invoking the Fifth Amendment during his deposition Wednesday morning. Bernal, who was appearing before the House Oversight Committee as a witness in its investigation into the Biden administration’s use of the autopen,

When the president is traveling, time-sensitive documents – such as bills to keep the government open – may need a signature right away, and it’s not always feasible to fly the original documents to wherever the president is.

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

Outnumbered' panelists discuss President Donald Trump's criticism of the autopen use during the Biden administration.