This post shows have Asians, Hispanics, and Blacks, have voted in US presidential and House elections over the last few decades. The first three table’s data comes from New York Times exit poll data. The fourth table’s data comes from Gallup. The House election data is also from the New York Times.
As can be seen above, Blacks vote democrat and this trend is increasing with time.
Hispanics vote democrat, but the degree to which this is true goes up and down. But they always vote democrat. Even under Reagan, who granted amnesty, and Bush, who was a Texas Governor and tried very hard to get the Hispanic vote.
Asians used to vote republican. They don’t anymore and this becomes more true every election.
Back in the 1960’s they didn’t count Blacks, Asians, and Hispanics but, rather, just non-Whites. And non-Whites voted heavily democrat.
Whites have voted Republican in every election since 1972. This is interesting, because is implies that Carter, Clinton, and Obama, are entirely the result of the fact that the U.S. has a significant non-White voting block which consistently breaks democrat. This data also shows that, were it up to said non-Whites, Nixon, Reagan, and both Bushes, would have never been president. Given that the non-White voting block is growing in the U.S., this paints a certain kind of picture for our future.
The house data basically shows the same thing. Voting GOP is typically something that, on the aggregates, only Whites do. Though, Asians used to, and might again someday.