Poll: GOP challenger narrowly leads Heitkamp in North Dakota

Poll: GOP challenger narrowly leads Heitkamp in North Dakota
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The Senate race in North Dakota between Sen. Heidi HeitkampMary (Heidi) Kathryn HeitkampDems pressure GOP to take legal action supporting pre-existing conditions Election Countdown: Senate, House Dems build cash advantage | 2020 Dems slam Trump over Putin presser | Trump has M in war chest | Republican blasts parents for donating to rival | Ocasio-Cortez, Sanders to campaign in Kansas Senate Dems build huge cash edge in battlegrounds MORE (D) and Rep. Kevin CramerKevin John CramerSenate Dems build huge cash edge in battlegrounds The Hill's Morning Report — Trump denigrates NATO allies, floats 4 percent solution Supreme Court vacancy throws Senate battle into chaos MORE (R) is all but a toss-up, a poll released Monday found.

The Mason-Dixon poll showed Cramer with a 4-point lead over Heitkamp, which falls within the survey’s margin of error.

Forty-eight percent of voters said they would support Cramer if the election were held today, while 44 percent said they’d back Heitkamp. Another 8 percent said they are undecided. 

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The poll surveyed 625 adults in North Dakota between June 13-15. Its margin of error is 4 percentage points.

Heitkamp is among the most vulnerable senators up for reelection in November. President TrumpDonald John TrumpNFL freezes policy barring players from protesting during anthem McConnell spokesman on Putin visit: 'There is no invitation from Congress' Petition urges University of Virginia not to hire Marc Short MORE won North Dakota in the 2016 presidential election by roughly 36 percentage points over Democratic nominee Hillary ClintonHillary Diane Rodham ClintonProminent Putin critic: If Trump turns me over, I'm dead Dems unveil slate of measures to ratchet up pressure on Russia Trump tweets old video of Clinton talking up 'a strong Russia' MORE.

The president is scheduled to make a trip to Fargo, N.D., on June 27, ostensibly to rally support for Cramer.

Cramer has recently expressed frustration with Trump's perceived friendly relationship with Heitkamp. 

The president called her onto the stage at a tax event in North Dakota last year, and his staff invited her to a bill signing last month at the White House.