 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 decree. 67% of the respondents giving the win to Mr. Trump. 33% go with Mr. Biden, whose performance has many Democrats talking about the need to replace him as a 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.