Nearly a third of Americans who voted for President 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 said they don't believe that Trump's eldest son met with a Russian lawyer last year, according to a new poll released Tuesday.

That's despite the fact that Donald Trump Jr. has admitted that the meeting took place.

The poll from the left-leaning Public Policy Polling found that only 45 percent of Trump voters said they believe that Trump Jr. went to the meeting, even after he released an email chain proving that he was eager to receive potential dirt from the Russian government on his father's campaign rival 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 at the meeting.

Thirty-two percent of the Trump supporters said they don’t believe the meeting took place, while 24 percent said they aren’t sure, according to the poll results.

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On the topic of Russia in general, 72 percent of Trump voters said stories about Russia are “fake news,” with less than a quarter of the voters thinking that there should be a probe into potential collusion with Russia.

Though only 13 percent of the voters believe that members of the Trump campaign did work with Russians for campaign help, 77 percent of the Trump voters said they think Trump should stay in office even if the campaign did collude with Russia.

“The Russia story doesn’t seem to be having that much of an impact on Donald Trump’s political standing yet,” said Dean Debnam, president of Public Policy Polling. “A big part of the reason for that is many of his supporters just refuse to believe or pay attention to it.”

The poll surveyed 836 registered voters between July 14 -17, with a margin of error of 3.4 percentage points.