More than 2 in 5 American voters think the presidential election could be "stolen" from Donald Trump Donald John TrumpOmar fires back at Trump over rally remarks: 'This is my country' Pelosi: Trump hurrying to fill SCOTUS seat so he can repeal ObamaCare Trump mocks Biden appearance, mask use ahead of first debate MORE due to voter fraud, a poll released Monday shows.

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The Politico/Morning Consult Poll finds that 41 percent of voters think widespread voter fraud could cause the GOP nominee to lose the election.

Amid Trump's increased warnings about a "rigged election," 73 percent of Republicans think the election could be stolen from him, compared to 17 percent of Democrats.

Over the past week, Trump has cast doubt on the American electoral system, saying he believes the results will be "rigged" at many polling places.

"The election is absolutely being rigged by the dishonest and distorted media pushing Crooked Hillary — but also at many polling places — SAD," Trump wrote on Twitter Sunday.

Trump has also encouraged supporters to keep an eye on voting locations to prevent fraud, which some say is a ploy to intimidate voters.

Trump is trailing Democratic nominee Hillary Clinton Hillary Diane Rodham ClintonButtigieg stands in as Pence for Harris's debate practice Senate GOP sees early Supreme Court vote as political booster shot Poll: 51 percent of voters want to abolish the electoral college MORE in the polls following sexual assault and harassment allegations from multiple women.

The Politico/Morning Consult poll showed Clinton leading Trump by 5 points, 46 to 41 percent.

In a RealClearPolitics polling average, Clinton leads Trump by 5.5 points, 47.7 to 42.2 percent.

While Speaker Paul Ryan Paul Davis RyanKenosha will be a good bellwether in 2020 At indoor rally, Pence says election runs through Wisconsin Juan Williams: Breaking down the debates MORE (R-Wis.) and even Trump's running mate, Indiana Gov. Mike Pence Michael (Mike) Richard PenceButtigieg stands in as Pence for Harris's debate practice Trump argues full Supreme Court needed to settle potential election disputes Pence adviser knocks ex-staffer who criticized Trump on COVID-19 MORE, have tried to reassure the electorate about the reliability of the election system, the poll released Monday found 60 percent of Americans think it is necessary to question the accuracy of the election results.

The poll was conducted among 1,999 registered voters Oct. 13–15 and has a margin of error of 2 percentage points.