WASHINGTON (CNN) -- Democratic and Republican presidential front-runners held their leads in a new CNN/WMUR poll of New Hampshire voters, but there was some movement in the middle of the pack.
Among New Hampshire Republicans, Sen. John McCain of Arizona slid in popularity to 12 percent from 20 percent in a June poll. McCain came in fourth, behind former Sen. Fred Thompson of Tennessee.
Thompson, who has not yet entered the race but is setting up a campaign, drew the support of 13 percent of GOP voters in the new survey.
Former Massachusetts Gov. Mitt Romney continues to lead Republican candidates, with 34 percent of GOP voters supporting him in the poll. Twenty percent favor former New York Mayor Rudy Giuliani. See full results of poll (PDF)
Former Sen. John Edwards, the Democrats' vice presidential nominee in 2004, slipped to a statistical tie with New Mexico Gov. Bill Richardson in the latest poll. Edwards drew 14 percent in the June poll but came in at 9 percent in the new survey, while Richardson drew 11 percent in both. Watch how President Bush influences polls in New Hampshire »
Democratic front-runner Sen. Hillary Rodham Clinton of New York wields a solid lead over Sen. Barack Obama of Illinois, with the former first lady claiming the support of 36 percent of Granite State voters to Obama's 27 percent.
Only 7 percent of Republican primary voters polled and 10 percent of Democrats said they had settled on a candidate.
Fifteen percent of Republicans say they are very satisfied with their field of candidates, while 32 percent of Democrats surveyed say they are.
On the Democratic side, 16 percent of the 333 voters surveyed said they would not consider voting for Clinton under any circumstances; 15 percent said the same about Obama, and 24 percent viewed Edwards as unacceptable.
New Hampshire holds the nation's first presidential primary, scheduled for January 22.
The poll, conducted by the University of New Hampshire between July 9 and Tuesday, had a sampling error of plus or minus 5.5 percentage points. It surveyed 307 people who said they planned to vote in the Republican primary and 333 who said they would vote in the Democratic primary.
Eight Democrats and 10 Republicans are in the wide-open race for the White House.
Among other Democratic candidates, Sen. Joseph Biden of Delaware drew 4 percent support, Rep. Dennis Kucinich of Ohio 3 percent, and Sen. Christopher Dodd of Connecticut and former Sen. Mike Gravel of Alaska each drew less than 1 percent.
Among other Republicans, former Arkansas Gov. Mike Huckabee and Rep. Ron Paul of Texas were tied at 2 percent; Rep. Tom Tancredo of Colorado and former Wisconsin Gov. Tommy Thompson each had 1 percent; and Sen. Sam Brownback of Kansas and Rep. Duncan Hunter of California each had less than 1 percent support. E-mail to a friend