Former U.S. Republican Senator Scott Brown.
Former Massachusetts U.S. Republican Senator Scott Brown. (UNITED STATES - Tags: POLITICS)
Gretchen Ertl/REUTERS

Republican Scott Brown has closed a 12-point gap in the monthly WMUR/Granite State poll, and has pulled into a statistical dead heat with incumbent Democrat Jeanne Shaheen for the New Hampshire US Senate seat.

Shaheen leads Brown 46 percent to 44 percent, well within the poll’s 4 percent margin of error. Just one month ago, Shaheen was up 50-38 in the same poll.

Brown still has to clear the field on the Republican side, with former US Senator Bob Smith and former state Senator Jim Rubens contesting the primary. Shaheen still commands wide leads over the other two Republican suitors to the nomination, however.

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Shaheen enjoys more personal favorability among poll respondents, with 48 percent saying they have a favorable opinion of the senator and 36 percent saying they have an unfavorable opinion of her. Brown has a lower overall favorability rating and tighter spread: Just 38 percent of respondents said they had a favorable opinion of him compared to 36 percent who did not.

You can see a PDF of the results and explanation of the methodology here.