 Who won last night's CNN presidential debate? The cable network's flash poll, conducted just after the Atlanta debate, gives former President Trump a resounding victory. 67% of respondents giving the win to Mr. Trump, 33% to Mr. Biden, whose performance has many Democrats talking openly about the need to replace him as the presidential nominee. During last night's matchup, Mr. Biden accused Mr. Trump of stoking the flames of protest that led to the attack on the U.S. Capitol.