Democrat Shea-Porter leads Guinta in New Hampshire

The poll gives Shea-Porter 45 percent support to Guinta's 39, with 7 percent of voters undecided and another 9 percent backing Libertarian candidate Brendan Kelly.

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Shea-Porter's favorables are also higher than Guinta's, with a plurality (43 percent) of respondents saying they have favorable opinions of her, while only 35 percent of respondents view Guinta's job performance positively.

The poll was conducted among 400 likely general-election voters in the district over Aug. 7-9, and has a margin of error of plus or minus 4.9 percentage points.

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