Subject: Re: Mamdani
But for some reason, Trump gets away with saying such things....

I mean, it's not exactly "getting away" with anything. It's perfectly legal to say such things, and Trump is a lame duck who will never need to run for re-election again. He will suffer whatever political consequences come with that statement, as always (Trump is fairly unpopular with a low approval rating, in part due to his predilection for saying things like this) - but since he's not really interested in general political approval as much as wielding the executive power that comes with his office, he doesn't much care.