(CNN) - Republican Kelly Ayotte may be even closer to fending off her Democratic opponent in New Hampshire's Senate race, according to a new poll.
A WMUR Granite State Poll released Thursday found that 50 percent of likely voters support Ayotte, while 35 percent support Democratic Rep. Paul Hodes. Twelve percent remain undecided.
The survey shows that likely voters who are "very interested" in the election support Ayotte by a 56 to 36 percent margin.
According to the survey, Ayotte also leads among likely voters not registered in either of the two major political parties, 41 to 30 percent.
The WMUR poll was conducted by phone between Sept. 23-29, and surveyed 472 likely voters voters. It carries a sampling error of plus or minus 4.3 percent.
The winner of the November election will succeed retiring Republican Sen. Judd Gregg.
An American Research Group survey released Monday had Ayotte holding a 14-point lead over Hodes.