This is bizarre, though. If there were some kind of trickery involved, you'd suspect the make-up artist. But here the make-up man, Lazz Rodriguez, gives testimony, and says outright that he didn't make Romney up.
Most likely, Romney was tanned from campaigning. If he did apply some spray tan, which is unlikely, what's the big deal? And couldn't that just as well be a way of appealing to Sunbelt voters as Latinos?
I suspect it's the Massachusetts sun!