Rep. Martha McSally Martha Elizabeth McSallyThe Hill's Campaign Report: Presidential polls tighten weeks out from Election Day Mark Kelly: Arizona Senate race winner should be sworn in 'promptly' New ABC/WaPost poll finds Trump edging Biden in Arizona, Florida MORE (R-Ariz.) holds a 6-point lead over Rep. Kyrsten Sinema (D-Ariz.) in a new poll of their Arizona Senate race.

The ABC15-OH Insights poll, which was released on Wednesday, found that 47 percent of likely voters favor McSally in the race to replace Sen. Jeff Flake Jeffrey (Jeff) Lane FlakeHow fast population growth made Arizona a swing state Jeff Flake: Republicans 'should hold the same position' on SCOTUS vacancy as 2016 Republican former Michigan governor says he's voting for Biden MORE (R-Ariz.), who is retiring.

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Meanwhile, 41 percent of voters said they favored Sinema. Four percent said they support Green Party candidate Angela Green. The survey said Green may be taking away support on the left from Sinema.

“Our September 5th poll showed McSally taking the lead over Sinema and continues to lead into October,” chief pollster Mike Noble said in a statement. “The combination of Angela Green entering the race and Trump’s approval increase is having a negative effect on Sinema, making her numbers go down.”