According to the Hollywood Reporter‘s Scott Feinberg, the production crew was stunned by De Niro’s outburst.
For those watching at home, De Niro said, “I’m going to say this — FUCK TRUMP. It’s no longer ‘Down with Trump,’ it’s FUCK TRUMP.’ ” #TonyAwards— Dave Quinn (@NineDaves) 11, 2018
De Niro: “FUCK TRUMP!” Standing O. Repeats it! TV production people wearing headsets are staring at each other with mouths agape. Amazing live TV moment. — Scott Feinberg (@ScottFeinberg) June 11, 2018