You know Barack Obama's going through a rough spot when his approval rating is under 50% even in Massachusetts. 49% of voters there now approve of the job he's doing to 45% who disapprove. That represents a 17 point drop on the margin from early June when he was at 58/37 in the state.
The reasons for Obama's decline in Massachusetts are the same as they are nationally: he's unpopular with independents and increasingly having more trouble with his party base. Only 42% of independent voters think he's doing a good job, while 53% are unhappy with him. And while Democrats approved of him by an 84/11 spread in early June, that's now declined to 74/20.
Obama's popularity may be on the decline but he still doesn't need to worry about actually losing Massachusetts. Even against the state's former Governor, Mitt Romney, Obama leads 53-40. Romney is not popular in his home state, with 41% of voters rating him favorably to 53% with a negative opinion. Texas poll results we released yesterday found Rick Perry with under water approval numbers there so neither of the GOP frontrunners are particularly popular on the home front. Although Romney doesn't appear to have much of a chance of winning the state his 13 point deficit is an improvement from the June poll, when he trailed by 20, and from the 2008 results in the state when John McCain lost to Obama by 26 points.
Obama would win by 2008 like margins against anyone else in the Republican field. He's up 25 points on Ron Paul at 55-30, 26 on Rick Perry at 58-32, 27 on Newt Gingrich at 58-31, and 31 on Michele Bachmann at 59-28. It definitely doesn't say much for Perry's electability that he's doing worse than Paul, even in a state like Massachusetts that isn't likely to have much relevance to the Presidential contest.
The Republican candidates not named Mitt Romney are incredibly unpopular in the Bay State- Bachmann and Perry have matching 22/63 favorability breakdowns, Paul's is 21/61, and Gingrich's is the worst at 21/67.
Full results here