Donald Trump Donald John TrumpUS reimposes UN sanctions on Iran amid increasing tensions Jeff Flake: Republicans 'should hold the same position' on SCOTUS vacancy as 2016 Trump supporters chant 'Fill that seat' at North Carolina rally MORE receives only 1 percent support from black voters in a new poll.

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A Quinnipiac University survey released Wednesday found presumptive Democratic presidential nominee Hillary Clinton Hillary Diane Rodham ClintonJeff Flake: Republicans 'should hold the same position' on SCOTUS vacancy as 2016 Momentum growing among Republicans for Supreme Court vote before Election Day Warning signs flash for Lindsey Graham in South Carolina MORE taking 91 percent support among that important Democratic constituency.

Clinton’s advantage there helped her edge Trump overall in the poll, 42 percent to 40 percent.

Democrats routinely win landslide majorities among black voters, but Trump is running behind the previous two GOP presidential nominees with black voters.

Exit polls showed Mitt Romney taking 6 percent support among black voters in 2012. Sen. John McCain John Sidney McCainMomentum growing among Republicans for Supreme Court vote before Election Day McConnell urges GOP senators to 'keep your powder dry' on Supreme Court vacancy McSally says current Senate should vote on Trump nominee MORE (R-Ariz.) had 4 percent in 2008.

Trump leads Clinton, 47 percent to 34 percent, among white voters in the poll, while Clinton leads, 50 to 33 percent, among Hispanics.

The Quinnipiac survey of 1,610 registered voters was conducted between June 21 and June 27 and has a margin of error of 2.4 percentage points.