With all the 'winning, winning, winning,' Donald Trump has been doing in the last three states that held Republican contests, pollsters have looked more closely at the Trump voting bloc.

YouGov and Public Policy Polling data, assembled since the beginning of the year, has the New York Times suggesting that Trump has 'built a significant part of his coalition of voters on people who are responsive to religious, social and racial intolerance.'

One example that sticks out is a YouGov poll, which found that nearly 20 percent of Trump's voters said the slaves should not have been freed after the Civil War.

Even more, when P.P.P. asked voters if they thought white people represented the superior race, while a majority of Republican primary voters in South Carolina – 78 percent – said no, that number decreased to 69 percent among Trump voters.

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A YouGov poll found that nearly 20 percent of Donald Trump's voters said slaves shouldn't have been freed after the Civil War

Donald Trump's supporters in South Carolina were more likely than those of other candidates to approve of the confederate flag flying above the state capitol

In both these surveys, comparison with the other candidates' supporters are important. For instance, only 5 percent of Sen. Marco Rubio's supporters believed that the slaves shouldn't have been freed.

On the question of the white race, the Times noted, 99 percent of Ben Carson's supporters, who were clearly on board with a black candidate, said they disagreed with the idea that whites represented the No.1 race.

Following Carson's people were supporters of Ohio Gov. John Kasich, 92 percent who said no, and Sen. Ted Cruz, with 89 percent saying no.

Rubio's supporters were in line with the average at 76 percent.

In another battle that ties in race and the Civil War, 70 percent of Trump supporters in South Carolina, according to P.P.P. would prefer it if the confederate flag was still flying over the state capitol.

Gov. Nikki Haley, who put her weight behind Rubio just days before Saturday's South Carolina primary, and other South Carolina officials, retired the flag last summer after the mass shooting at the Charleston Emanuel A.M.E. Church.

Additionally, 38 percent of those supporters wish the South would have won the Civil War. In comparison, a quarter of Rubio's supporters believe the same thing. The numbers for Kasich and Carson are way down.

Moving a few decades forward, a third of Trump, and Cruz's supporters too, say they believe that Japanese internment was a good thing to do.

About 10 percent of Kasich and Rubio's supporters feel that way too.

After World War II concluded, President Harry Truman ordered the military desegregated, something that Trump supporters said they were against in more robust numbers than the rest of the current crop of GOP candidates.

Turning to more current issues, a third of Trump's backers in South Carolina believe that gays and lesbians should be banned from entering the United States.