[B]lack people are too stupid to vote for me.
Source, in full
As quoted in "Michael Cohen Says Trump Repeatedly Used Racist Language in Private" (2 November 2018), by Emily Jane Fox, Vanity Fair. In a post-2018 midterm press conference, Trump denied making the comment and dismissed Cohen's claims: "That's false" — as quoted in "President Trump says he has 'never used racist remarks'" (7 November 2018), by Hunter Walker, Yahoo News.