An internal poll conducted for Democratic Rep. Martin Heinrich's New Mexico Senate campaign shows his lead growing over former GOP Rep. Heather Wilson.
The poll, conducted by GBA Strategies, shows Heinrich leading Wilson 55 percent to 42 percent in a head-to-head matchup. When Independent American Party candidate Jon Barrie is included in the poll, Heinrich's lead shrinks to 12 points: Heinrich 51, Wilson 39, Barrie 8.
It's an improvement from Heinrich's last internal poll, released in late September, which showed the Democrat up by eight.
Heinrich is viewed favorably by 44 percent of respondents and unfavorably by 34 percent in the survey, while Wilson is seen favorably by just 32 percent and unfavorably by 46 percent.
Heinrich is favored in the contest, though Wilson's campaign recently released an internal poll showing a dead heat in the three-way matchup. President Obama is expected to win New Mexico in November.
The poll was conducted Oct. 4-7 and surveyed 600 likely voters. The margin of error is plus-or-minus 4 percentage points.