Funny, and crazy that it’s actually a possibility these days, but the real answer is both of them are old asshole narcissists and Trump can’t stand anyone who thinks they’re equal or better to Trump, he can’t stand anyone who is definitely smarter, he actually said that, and he can’t stand anyone who has had success in places he himself has not, so anything other than complete fealty and complicity through payoffs would be met with disdain, and Maher has admitted many times he was there to beg for his award, the Mark Twain prize, and to enjoy being honored by another powerful man by being allowed to party in the people’s house. Trump views that as a more successful man taking from him, one of the worst offenses Trump can imagine again him, only lesser than being a rat or being a sucker and doing something for free and suffering a loss of any kind doing so in the name of actual public service.