Democratic presidential 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 leads Republican 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 by 5 points in traditionally red Arizona, according to a new poll.

Clinton tops Trump 39 to 34 percent among likely voters in the Arizona Republic/Morrison/Cronkite News survey out Wednesday.

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Twenty-one percent remain undecided less than a month from Election Day, while no third-party presidential candidate reached double-digits.

Libertarian nominee Gary Johnson Gary Earl JohnsonWhat the numbers say about Trump's chances at reelection Presidential race tightens in Minnesota as Trump plows resources into state The Hill's Campaign Report: Biden condemns violence, blames Trump for fomenting it l Bitter Mass. primaries reach the end l Super PAC spending set to explode MORE hits 6 percent, while Green Party nominee Jill Stein registers less than 1 percent.

Pollsters questioned 713 likely voters in Arizona from Oct. 10 to 15. The new survey has a margin of error of 4.3 percentage points.

Last month, the same poll had the race in Arizona too close to call. Clinton led Trump, 35 to 34 percent in that edition, within a 3.3 percent margin of error.

Clinton's husband, former President Bill Clinton William (Bill) Jefferson ClintonChelsea Clinton: Trump isn't building public confidence in a vaccine Hillary Clinton launching podcast this month GOP brushes back charges of hypocrisy in Supreme Court fight MORE, was the most recent Democrat to carry Arizona, taking the state during his 1996 reelection bid.

No Democrat had won the Grand Canyon State before then, except for former President Harry Truman, who took it in 1948.

Hillary Clinton leads Trump by 8 points nationwide, according to the latest RealClearPolitics average of polls.