BTW, this could be Trump's slap back at Frank Sinatra from years ago. (He never forgets a slight.)
Frank Sinatra and Donald Trump had a contentious relationship stemming from a failed 1990 contract renegotiation for the opening of Trump’s Taj Mahal casino in Atlantic City. After a Trump executive died, Trump tried to reduce Sinatra’s fee and cancel other acts, leading Sinatra to tell his manager to tell Trump to "go f--- himself" and play elsewhere.
Key details regarding this incident include:
The 1990 Dispute: Sinatra was originally booked to open the Taj Mahal, but Trump attempted to renegotiate the deal after the death of his business partner, Mark Grossinger Etess, labeling the original terms "a little rich".
The Threat: According to manager Eliot Weisman, Sinatra told him to either tell Trump to "go f--k himself" or give him Trump's phone number to do it personally.
Alternative Booking: Sinatra subsequently performed at The Sands Hotel and Casino in Las Vegas instead of the Taj Mahal.
Long-term Animosity: Nancy Sinatra, Frank's daughter, has stated that her father "loathed" Donald Trump and described her father’s attitude toward him as one of deep dislike.
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