I believe Duke endorsed Trump, which gave rise to some irritated memes from the black American crowd, even though it took only about a day for Trump to refuse it.
David Duke tried to co-opt Trump's victory as a personal vindication and then tried to take credit for it.
I believe Duke endorsed Trump
Trump disavowed the “endorsement” very quickly.
Yet the media kept saying what you just said, “Duke endorsed Trump”
And Trump kept hammering them for fake news until they went to another lie.
Donald Trump DISAVOWS David Duke/KKK again and again and again
AND AGAIN, AND AGAIN...
https://www.youtube.com/watch?v=DeK-f3_7Wv4