New Mexico Rep. Martin Heinrich (D) led by more than 7 points in an internal poll released today by his campaign for the state's open Senate seat. In the poll, conducted by GBA Strategies, Heinrich led former Rep. Heather Wilson (R), 51 percent to 44 percent. The poll of 700 likely voters was taken Aug. 14-19. It had a 4-point margin of error. (more…)