when i first heard of this foolishness i was without words and can't find too many more now. the trump game is built from some level of either insecurity or bombasity i can't find too many precedents for;

For example, if you ask Google “Was the renaming of the Kennedy Center legal?” the Google AI answer right now, on December 19th, is:

No, the recent move to rename the Kennedy Center to include Donald Trump’s name is widely considered illegal and unauthorized, as federal law established it as a permanent living memorial to President Kennedy, requiring an act of Congress to change, which hasn’t happened. While the Center’s board voted to add his name, legal experts and lawmakers state that a president cannot unilaterally rename such a congressionally designated institution, making the signage changes unlawful without new legislation.

And that happens to be a very good summary of everything I’ve read on the matter. However, as The Daily Beast headlined, also on December 19th, “Trump Ignores Law and Sticks His Name on Kennedy Center”, and CBS News headlined (the Trump-selected) “Board of Kennedy Center votes to change its name to Trump-Kennedy Center” and they also renamed the institution “The Donald J. Trump and The John F. Kennedy Memorial Center for the Performing Arts”; and photos of it now already (less than 24 hours after Trump had announced the name-changes) show this to be the sign that’s on the building. Not even a public-comment period, much less any vote in Congress to revise existing laws so that these name-changes would be legal.........more.........