Inside the Biden cover-up probe: 8 aides questioned, more on the way

House Oversight Committee Chair James Comer, R-Ky., is investigating whether former President Joe Biden's closest aides worked to conceal evidence of mental decline in the octogenarian Democrat during his White House term, and whether an autopen was used for executive decisions without his knowledge.

Biden himself asserted to the New York Times that he "made every decision" regarding autopen pardons specifically, and his allies have dismissed the GOP-led probe as a partisan show.

Several ex-senior White House officials are due in the coming weeks, including former press secretary Karine Jean-Pierre and ex-White House chief of staff Jeff Zeints.

But Comer's staff have also met with a number of people so far – some who have said very little, while othe...