Biden said he had no regrets about his decision to seek reelection and was optimistic about his recent cancer diagnosis.

Former President Joe Biden, the oldest president in the White House, had many critics who questioned his physical and cognitive abilities as commander-in-chief.

Joe Biden said he “could beat the hell out of” CNN’s Jake Tapper Friday, firing back against the anchor’s new book that painted a damning portrait of his mental capabilities. Biden has faced a fresh onslaught of attacks on his decision to run for president since Original Sin‘s release earlier this month.