Biden calls Kamala Harris 'Vice President Trump', mixes up Zelensky with Putin as doubts mount over re-election bid
Biden's campaign has been on the ropes for two weeks, since his poor debate performance against Trump, 78. So far, 13 of the 213 Democrats in the House and one of the Senate's 51 Democrats have appealed publicly to the president to withdraw from the race. More could make their concerns public if he fares poorly.