He was rocking with Trump long before he even had that 3 fight winning streak, he had posts on IG supporting him when he was still a candidateMasvidal is half Peruvian, half Cuban. I wouldn't even put him in the "white hispanic" category. Dude doesn't look White to me, at all. He looks like most latins that have a varying degree of mixed white, black and native blood.
To me it seems like he tried to tap into the trump fan base as a promotional tool.