This non entity has been trying to get attention for a LONG time. I’m probably biased because I can’t stand him, but I think the best thing to do is deprive him of the attention & relevance he craves.
David Duke= Who?
According to Wikipedia he's a white nationalist, an anti-Semitic conspiracy theorist, a far-right politician (debatable), and former Grand Wizard of the Ku Klux Klan. He's also a Trump endorser. Trump may or may not have disavowed that endorsement.