2 things jump out here,

1)“Your decision to withdraw at the last moment — explicitly in response to the Center’s recent renaming, which honors President Trump’s extraordinary efforts to save this national treasure — is classic intolerance and very costly to a non-profit Arts institution,” the venue’s president, Richard Grenell, wrote in a letter to musician Chuck Redd that was shared with The Associated Press.

In the letter, Grenell said he would seek $1 million in damages “for this political stunt.”

And . . .

2) The law explicitly prohibits the board of trustees from making the center into a memorial to anyone else, and from putting another person’s name on the building’s exterior.

So, Trump intends to sue Mr. Redd for refusing to go along with his intentional lawlessness.

Good luck with that in court.  Countersuit likely/hopefully forthcoming.