 The president will try to quiet doubts about his ability to serve another four years when he holds a rare solo press conference. It comes at a critical moment for his reelection campaign, as Democrats remain uneasy about him being on the ticket after his wobbly debate performance two weeks ago. White House correspondent Greg Cluxton. Democratic New Jersey Senator Cory Booker was asked if he still has confidence in President Biden for the upcoming election. We're going to defeat Donald Trump. Is Biden the best person to do that?