WASHINGTON (AP) — Nearly two-thirds of Democrats say President Joe Biden should withdraw from the presidential race and let his party nominate a different candidate, according to a new poll, sharply undercutting his post-debate claim that “average Democrats” are still with him even if some “big names” are turning on him. The new survey by the AP-NORC Center for Public Affairs Research, conducted as Biden works to salvage his candidacy two weeks after his debate flop, also found that...