Poll: Dems hold slim lead in Arizona, Nevada Senate races

Poll: Dems hold slim lead in Arizona, Nevada Senate races
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A poll released Wednesday showed Democratic Senate candidates holding narrow leads in Arizona and Nevada, two states where Democrats have the best chance to pick up seats.

A CNN poll found Rep. Kyrsten Sinema (Ariz.) with a 4 point edge over Rep. Martha McSallyMartha Elizabeth McSallyThe Hill's Morning Report — Washington readies for Mueller end game The Memo: Trump can't let go of McCain grudge Overnight Defense: Top Marine warns border deployment could hurt readiness | McSally aims for sexual assault reforms in defense bill | House to vote on measure opposing transgender ban | New warning over F-35 sale to Turkey MORE (R-Ariz.) in the race to replace retiring Sen. Jeff FlakeJeffrey (Jeff) Lane FlakeTrump's attacks on McCain exacerbate tensions with Senate GOP Schumer to introduce bill naming Senate office building after McCain amid Trump uproar Trump keeps tight grip on GOP MORE (R). A separate CNN poll showed Rep. Jacky RosenJacklyn (Jacky) Sheryl RosenThe 31 Trump districts that will determine the next House majority The Hill's 12:30 Report: Manafort sentenced to total of 7.5 years in prison Female Dems see double standard in Klobuchar accusations MORE (D-Nev.) leading Sen. Dean HellerDean Arthur HellerTrump suggests Heller lost reelection bid because he was 'hostile' during 2016 presidential campaign Trump picks ex-oil lobbyist David Bernhardt for Interior secretary Oregon Dem top recipient of 2018 marijuana industry money, study finds MORE (R-Nev.) by 3 points.

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In Nevada, a state that Democrat Hillary ClintonHillary Diane Rodham ClintonDemocratic Socialists of America endorses Sanders for president How to end the Electoral College and elect our next president by popular vote CNN town halls put network at center of Dem primary MORE narrowly won in the 2016 presidential election, Rosen leads Heller, 48 percent to 45 percent, among registered voters. The poll has a margin of error of 4.2 percentage points.

The Nevada poll surveyed 807 registered voters from Oct. 24-29.

Seventy-eight percent of voters surveyed said they've made up their mind about who they plan to vote for on Nov. 6, while 20 percent said they might change their mind before casting a ballot.

An average of other polls in the Nevada race shows Heller leading by 1.7 points.

In Arizona, where voters have not elected a Democrat to the Senate in 30 years, Sinema leads McSally, 51 percent to 47 percent. That margin is down from September, when Sinema led by 7 points in a CNN poll.

Eighty-six percent of respondents said their mind is made up in the race, while 13 percent said they might still change their decision, according to the most recent poll.

RealClearPolitics average of all polls in the race shows Sinema leading by less than 1 point.

CNN's Arizona poll surveyed 867 registered voters from Oct. 24-29, and has a margin of error of 4 percentage points.

The two races are likely to play a decisive role in determining control of the Senate. To secure a majority, Democrats would likely have to win both states and retain all of their current seats on Election Day.

Both races are rated "toss-ups" by the nonpartisan Cook Political Report and have drawn in key figures from each party. President TrumpDonald John TrumpSenate GOP budget ignores Trump, cuts defense Trump says he'll nominate Stephen Moore to Fed White House: ISIS territory in Syria has been 100 percent eliminated MORE held rallies in Arizona and Nevada earlier this month, and he has visited Nevada multiple times in support of Heller.

Former President Barack ObamaBarack Hussein ObamaJennifer Lopez and Alex Rodriguez's engagement win Obama's endorsement Pence lobbies anti-Trump donors to support reelection: report The Hill's 12:30 Report: Trump attacks on McCain rattle GOP senators MORE and former Vice President Joe BidenJoseph (Joe) Robinette BidenAmy Poehler reveals which Dem candidates her 'Parks and Recreation' character might vote for The Hill's Morning Report — Washington readies for Mueller end game 2020 Dems avoid this year's AIPAC conference MORE stumped for Rosen in Nevada earlier this month. Obama has not visited Arizona, but has endorsed Sinema.