Democrat Tulsi Gabbard wins coveted David Duke endorsement

Congresswoman and presidential candidate Tulsi Gabbard (D-Hawaii) has won the endorsement of former KKK leader David Duke. Wait, what?
A 'Tulsi Gabbard for President' banner features the banner tagline, 'Finally a candidate who will actually put America First rather than Israel First!' Duke also endorsed Donald Trump during the 2016 presidential election.
Though Gabbard does have some reactionary credentials (she's a notorious homophobe, among other things), Duke's probably trolling as she's otherwise a moderate who hasn't taken aim at Israel or its policies.
UPDATE: Duke's done this before, and she's replied before:

U didn't know I'm Polynesian/Cauc? Dad couldn't use "whites only" water fountain. No thanks. Ur white nationalism is pure evil
— Tulsi Gabbard (@TulsiGabbard) November 27, 2016