Thirty-one people were arrested Thursday night near midtown Manhattan's Grand Hyatt Hotel, where the New York State Republican Gala was held, the NYPD tells ABC News.
The hotel hosted a group of GOP donors and political heavyweights, as well as the presidential hopefuls, Donald Trump, Ted Cruz and John Kasich.
A much smaller group of protesters were seen in the elevator bank with reporters, when they started chanting: "We ready, we coming!"
They were escorted out by police.
People were also seen being taken away from the protest outside of the hotel.