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 McSallyPublisher announces McSally book planned for May release Singer Brandi Carlile drops out of Fortune event over Kirstjen Nielsen's appearance The Hill's Morning Report - Dem debate contenders take aim at Warren MORE (R-Ariz.) in the race to replace retiring Sen. Jeff FlakeJeffrey (Jeff) Lane FlakeVulnerable senators hold the key to Trump's fate Trump's GOP impeachment firewall holds strong How to survive an impeachment MORE (R). A separate CNN poll showed Rep. Jacky RosenJacklyn (Jacky) Sheryl RosenSenate Democrats want Warren to talk costs on 'Medicare for All' Hillicon Valley: Trump seeks review of Pentagon cloud-computing contract | FTC weighs updating kids' internet privacy rules | Schumer calls for FaceApp probe | Report says states need more money to secure elections Senators introduce legislation to boost cyber defense training in high school MORE (D-Nev.) leading Sen. Dean HellerDean Arthur HellerThis week: Barr back in hot seat over Mueller report Trump suggests Heller lost reelection bid because he was 'hostile' during 2016 presidential campaign Trump picks ex-oil lobbyist David Bernhardt for Interior secretary MORE (R-Nev.) by 3 points.

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In Nevada, a state that Democrat Hillary ClintonHillary Diane Rodham ClintonSanders: 'Outrageous' to suggest Gabbard 'is a foreign asset' Clinton attacks on Gabbard become flashpoint in presidential race Saagar Enjeti: Clinton remarks on Gabbard 'shows just how deep the rot in our system goes' 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 TrumpTrump says he doesn't want NYT in the White House Veterans group backs lawsuits to halt Trump's use of military funding for border wall Schiff punches back after GOP censure resolution fails 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 ObamaUK judge denies Assange bid to delay extradition hearing Trump's eye-opening scorecard on border security Why Americans should look at the Middle East through the eyes of its youth MORE and former Vice President Joe BidenJoe BidenTrump says he doesn't want NYT in the White House Warren to protest with striking Chicago teachers Schiff punches back after GOP censure resolution fails MORE stumped for Rosen in Nevada earlier this month. Obama has not visited Arizona, but has endorsed Sinema.