The closely watched Iowa Senate race between Republican Joni Ernst and Democrat Bruce Braley is locked in a dead heat, a new NBC News/Marist poll shows, while New Hampshire Democratic Sen. Jeanne Shaheen has an eight-point lead over likely Republican challenger Scott Brown.
In Iowa, Ernst and Braley each have the support of 43% of registered voters. But both candidates remain unknown to many in the state; 14% of voters are undecided about who they support in the race, and approximately one-third say they are unsure about their opinion on the candidates or have never heard of them.
But both candidates are polarizing to the voters who know them. Braley gets positive marks from 36% of voters and a negative rating from 32%. Ernst’s favorability-to-unfavorability rating is 38% to 33%.
“Any way you slice the numbers, you end up with a close race,” said Lee Miringoff, the director of the Marist College Institute for Public Opinion, which conducted the poll for NBC News. “This is one that bears watching as the campaign unfolds.”
The Senate race in New Hampshire isn’t as fluid, with only 6% of registered voters saying that they’re undecided between incumbent Shaheen and Brown. It also isn’t as close: Shaheen is beating her GOP rival 50% to 42%.
Shaheen’s support is buoyed by strong personal approval ratings. Fifty-two percent of voters say they have a favorable impression of the freshman senator and former governor, versus 39% who give her a negative rating. That includes broad support from independents (54-35%), moderates (60-31%), and white voters (51-37%).
Brown, who moved to New Hampshire after serving as the Republican senator from Massachusetts for two years, doesn’t fare as well. New Hampshire voters are about equally divided (40% to 39%) on their opinions of him, including unfavorable assessments from 37% of independents and 40% of moderates.
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Also in Iowa, Republican Gov. Terry Branstad has a commanding lead in his re-election run over Democratic challenger Jack Hatch, 53% to 38%. Iowa voters offer good marks for Branstad’s tenure as governor, with almost six-in-10 saying they approve of his job performance.
New Hampshire Gov. Maggie Hassan, also up for re-election this year, has a 54% approval rating among New Hampshire voters.
Gender matters
As they did in NBC News/Marist polls of Colorado and Michigan released Monday, female supporters are helping Democratic Senate candidates in these key races maintain their edge.
Shaheen, the first woman in American history to be elected both as a governor and a senator, bests Brown by 25 points among female voters (59 to 34%). Only 28% of women have an unfavorable opinion of her, compared with 58% who give her a good grade.
But the gender gap is much smaller in Iowa. Women back Braley by eight points (45% to 37%) while men support Ernst – who gained national fame with an ad describing an Iowa farm upbringing that included the frequent castration of pigs – by a similar margin (48% to 40%).
“The party factor seems to be trumping gender as far as how voters are assessing these two candidates at the moment,” Miringoff said.









