This is unprecedented, and I think that this adds more fuel to the fire that there was a cover-up,” House Oversight chairman James Comer declared.

Ky., elaborates on former President Joe Biden’s doctor’s testimony before the House Oversight Committee on ‘Jesse Watters Primetime.’

Rep. James Comer (R-KY) speaks to reporters after taking the closed-door testimony of Biden-era White House physician Dr. Kevin O'Connor.

President Joe Biden’s former White House physician refused to answer questions as part of the House investigation into Biden’s health.

Former President Joe Biden's White House physician declined to answer questions before a House Committee as the GOP-led panel ramped up its investigation into Biden's age and health.

White House doctor, declined to answer questions about Joe Biden's cognitive health. He invoked his Fifth Amendment right. James Comer, Oversight chairman, alleges a cover-up. Comer suggests a conspiracy.

Republican members of the House Oversight and Government Reform Committee balk at the refusal. Democrats say Congress should focus on the health of the people.

Ky., joins 'Sunday Mornings Futures' to give the latest on the investigation into former President Joe Biden's health and autopen use as well as his subpoena of former Jill Biden aide Anthony Bernal.

Dr. Kevin O’Connor, who has been Biden’s physician since 2009, asked the House Oversight Committee to postpone his scheduled deposition.