President Biden acknowledged that he may not have had the stamina to serve another four years in the White House if he had won reelection. "I don't know," Mr. Biden said in a recent interview with USA Today when asked whether he "would've had the vigor to serve another four years in office.

Joe Biden thinks he could have won reelection if he had stayed in the White House race, he said in an interview published Wednesday -- while conceding he was unsure if he would have served another full term.