US President Joe Biden mistakenly referred to Ukrainian leader Volodymyr Zelensky as “President Putin” at a key press conference. Biden was speaking in Washington at the end of the three-day NATO summit and made the error while he was introducing the Ukrainian president. At the same press conference, Biden mistakenly called Kamala Harris “Vice-President Trump.”Biden’s misstep came just hours after some of his closest allies said they now see his chances of winning the US election as “zero.”