Trump, and most Republicans, say they are not racists. But while some Republicans may not be racists, it is obvious that racists and white supremacists believe they have found a comfortable home in the Republican Party. If you doubt that, then just look at the chart above.
Poll respondents were asked white racial group was discriminated against the most in the United States. The general public (by 16 points), Independents (by 14 points), and Democrats (by 43 points) all said the group most discriminated against was African-Americans.
But the response from Republicans was far different. By a whopping 21 point margin, they said that whites are discriminated against the most. And when you only consider Trump voters, that margin jumps up to 28 points.
After the civil rights laws were passed in the 1960's by a Democratic president and Congress, millions of racists left the party and joined the Republicans (especially in the South). They now make up a huge portion of the Republican Party (whether party leaders want to admit it or not).
This also tells us why Trump has not lost much support from Republicans or his supporters after his clearly inadequate response to Charlottesville (which gave a boost to racists and white supremacists).
The chart was made from responses to a new Public Policy Polling survey -- done between August 18th and 21st of a random national sample of 887 registered voters, with a 3.3 point margin of error.