DURHAM, N.H. — A new poll shows that Mitt Romney continues to lead the race for the Republican presidential nomination in New Hampshire, and there is a new candidate in second place.The WMUR Granite State Poll shows that Romney is the choice of 37 percent of likely Republican primary voters. Surging to a distant second is businessman Herman Cain, with 12 percent. He is followed by U.S. Rep. Ron Paul at 9 percent. Political Scoop (free): Compare All NH Polls The poll of 345 likely Republican voters was conducted by telephone by the University of New Hampshire Survey Center from Sept. 26 through Oct. 6. It has a margin of sampling error of plus or minus 5.3 percent.Romney has consistently led the field in New Hampshire by a 3-1 margin since 2009.