President-Elect Donald Trump demanded an apology from the entire cast of Hamilton this morning after Vice President-Elect Mike Pence attended the show and the cast delivered a statement asking him to work on behalf of all people in the White House.

On Twitter, Trump said that Pence had been harassed by the show’s cast on Friday night and that this should not happen. He went on to say in a separate tweet that the theater should be a safe space.

Our wonderful future V.P. Mike Pence was harassed last night at the theater by the cast of Hamilton, cameras blazing.This should not happen! — Donald J. Trump (@realDonaldTrump) November 19, 2016

The Theater must always be a safe and special place.The cast of Hamilton was very rude last night to a very good man, Mike Pence. Apologize! — Donald J. Trump (@realDonaldTrump) November 19, 2016

Upon arriving to the theater for a performance of Hamilton on Friday evening, Vice President-Elect Mike Pence was booed by audience members in attendance. The cast did not boo Pence or say anything negative about him, and in fact they specifically asked the crowd not to heckle the vice president-elect. Brandon Victor Dixon, who plays Aaron Burr in the show, made a brief statement at the conclusion of the performance thanking Pence for coming and asking him to be an inclusive leader.

“We, sir, are the diverse America who are alarmed and anxious that your new administration will not protect us, our planet, our children, our parents, or defend us and uphold our inalienable rights,” Dixon said. “We truly hope that this show has inspired you to uphold our American values and to work on behalf all of us.”

Dixon responded to Trump’s tweet by saying that conversation is not harassment.

@realDonaldTrump conversation is not harassment sir. And I appreciate @mike_pence for stopping to listen. — Brandon Victor Dixon (@BrandonVDixon) November 19, 2016

According to The New York Times, Pence was on his way out of the theater when the statement was made, but he stopped in a hallway to listen.

On the campaign trail, Donald Trump frequently stated that his rallies were the safest places on Earth while calling members of the press “disgusting” and encouraging his supporters to boo them.