Starting with Nixon, I remember reading books and articles where they discussed Republicans talking in a racial "code" - or dog whistles where most people would understand what they were getting at without them having to say it openly. Like the infamous Willie Horton ad from the first Bush's 1988 presidential campaign or Jesse Helms running the commercial in 1990 against Harvey Gantt of white hands wadding up a rejected job offer because a "less qualified" black person "took their job" due to affirmative action.
Well, those days are long gone. They're just out and proud now and not even trying to hide it. "Do you have brown or black skin and you're from a Third World country? Then you're inferior and a lazy piece of crap and worthless and probably a terrorist and we don't want you here." I mean, you can't really get any more openly racist and white supremacist (and nativist and xenophobic) than that.