(CNN) - A new poll shows Mitt Romney gaining momentum in New Hampshire for the Republican presidential race.
According to a WMUR Granite State Poll released Wednesday, the former Massachusetts governor leads the GOP pack with 42% of support in the first-in-the-nation primary state.
The survey, conducted before CNN's Republican National Security Debate on Tuesday, showed gains for Romney, who climbed from 37% when the poll was last done in October.
The poll notes that "Romney has consistently led the GOP field in New Hampshire by a 3-to-1 margin since 2009."
In distant second, former House Speaker Newt Gingrich took 15% of support among likely GOP primary voters.
Texas U.S. Rep. Ron Paul came in third with 12%, followed by former Utah Gov. Jon Huntsman at 8%, Georgia businessman Herman Cain and Texas Gov. Rick Perry at 4%, Minnesota U.S. Rep. Michele Bachmann at 2% and former Pennsylvania Sen. Rick Santorum at 1%.
Also significant, six in 10 voters said they were still undecided about whom they will eventually support. The New Hampshire primary is set for Jan. 10.
The University of New Hampshire Survey Center conducted the poll, interviewing 413 likely Republican primary voters by telephone between Nov. 15-20. The sampling error was 4.8 percentage points.