ABC News contributors Chris Christie, Sara Fagen, Rahm Emanuel, Matt Dowd and Yvette Simpson discuss highlights of the debate, which had additional muting rules. WATCH NIGHTLINE EPISODES: https://abc.go.com/shows/nightline ALSO AVAILABLE ON HULU: https://hulu.tv/2wSmSrZ #Nightline #PresidentTrump #CoronaVirus #Biden #PresidentialDebate #Politics