"His soul searching is actually happening, I know that for a fact," said one of the sources, who requested anonymity. Democratic Senator Chris Coons of Delaware, a close Biden ally, told CNN on Thursday that Biden will be "resting and reflecting" this weekend as he recovers from COVID-19. "Joe Biden has said he is running for president of the United States. Another source, a Biden campaign official, said the opposite. Former House of Representatives Speaker Nancy Pelosi backed Representative Adam Schiff's call for Biden to step aside, a top White House source with direct knowledge of the matter said.