 He also suggested that Biden will be replaced on the Democratic ticket, but prominent Democrats have rallied in support of the president after Thursday's debate. Senator Chris Coons of Delaware is a national co-chair of his reelection campaign and tells ABC's This Week the president's the only Democrat who can beat Donald Trump. Joe Biden has an incredible record, and he knows, as the American people do, that when you get knocked down, you get back up and you fight harder.