 From ABC News, I'm Michelle Franzen. High stakes for President Biden as concerns over his ability to win re-election grow within the Democratic Party. The president meeting with Ukraine's leader on the final day of the NATO summit in Washington, D.C. Later tonight, he holds his first solo press conference. ABC News political director Rick Klein says his fitness as a candidate and battle within the Democratic Party have taken a toll in the latest Washington Post-Ipsos polls.