Former Bay State Gov. Mitt Romney is a “major player” nipping at the heels of President Obama and stands as the GOP’s best shot to reclaim the Oval Office in 2012, a new national poll shows. “In many ways, he’s arguably the establishment front-runner,” pollster John Zogby said of a new poll showing Romney trailing President Obama by just 2 percentage points. “He’s got name recognition, he’s been through it before, and he did credibly in 2008. He’s a major player in the race.” The Zogby poll of 8,487 likely voters showed Obama edging Romney out 45 to 43 percent....