Former Biden aide Anthony Bernal was subpoenaed by the House Oversight Committee. (Getty)
Both criticized Bernal and his lawyer for arguing the Fifth Amendment was not an admission of guilt, and Comer told reporters "all options are on the table" when asked whether the former president himself should be brought in.
"We're gonna continue our investigation. I think that the American people are concerned," Comer said.
House Oversight Committee Chair James Comer, R-Ky., is investigating allegations that Biden's former top White House aides covered up signs of his mental and physical decline while in office, and whether any executive actions were commissioned via autopen without the president's full knowledge. Biden allies have pushed back against those claims.
In an interview with The New York Times on Thursday, Biden affirmed he "made every decision" on his own.
"Original Sin," a book by CNN anchor Jake Tapper and Axios political correspondent Alex Thompson, positions Bernal as a fiercely protective aide who was dubbed the leader of the "loyalty police" by other former Biden staffers.
His LinkedIn page lists him as currently working as Jill Biden’s chief of staff in the Transition Office of Former President Joe Biden.
The House Oversight committee released 20 mins of video footage from Dr. Kevin O’Connor’s deposition, showing him pleading the Fifth to all questions except answering his name. (@GOPOversight via X)
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But O'Connor's lawyers argued at the time that it was not an admission of guilt. Rather, they were concerned the scope of the committee's questioning could force him to violate patient-doctor confidentiality, risking his standing as a physician.
A House Oversight Committee aide pushed back: "Doctor-patient objection would have meant he would have stayed and answered questions that didn’t implicate such privilege. Instead, he took the Fifth to all and any potential questions."
Two other former Biden White House staffers appeared for voluntary transcribed interviews already.
Another, former deputy Chief of Staff Annie Tomasini, was also subpoenaed to appear this Friday.
Elizabeth Elkind is a politics reporter for Fox News Digital leading coverage of the House of Representatives. Previous digital bylines seen at Daily Mail and CBS News.
Follow on Twitter at @liz_elkind and send tips to elizabeth.elkind@fox.com
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