A wrong move. There is no requirement that anyone speak well of the president at all times. Unless a breach of contract is involved this is over-kill and will only fuel more anti-Trump sentiment.
Whoops. I missed where this was claimed in the Wolff toilet paper ream. I have read “cease and desist” letters. That was not done by any competent legal team. Not even a file clerk would send that out as a legit notice.