 President Biden Monday sent a letter to congressional Democrats doubling down on his intention to remain their presidential candidate, calling for an end to questions about whether he should stay in the race. Biden wrote, quote, We have one job, and that's to beat Donald Trump, unquote. Despite Biden's defiance, the feverish debate appears far from over. On Monday, Congressmember Adam Smith, the ranking Democrat on the Armed Services Committee, joined calls for Biden to end his campaign. Smith spoke on CNN.