US President Joe Biden on Thursday mistakenly referred to Ukrainian President Volodymr Zelenskiy as Russian President Vladimir Putin before correcting himself at the NATO summit in Washington. “And now I want to hand it over to the president of Ukraine, who has as much courage as he has determination, ladies and gentlemen, President Putin,” Biden said, referring to Zelenskiy. While correcting himself about two seconds later, Biden added: “President Putin, you’re going to beat President Putin, President Zelenskiy. I am so focused on beating Putin.” The room at the summit gasped when Biden misid…