Blumenthal summarizes:
We have two new polls out in Massachusetts on the January 19 special election to fill Ted Kennedy's Senate seat, and their results could not be more different. The new survey conducted Saturday through Wednesday last week by the University of New Hampshire Survey Center on behalf of the Boston Globe shows Democrat Martha Coakley leading by 17 percentage points (53% to 36%), while a new automated poll conducted on Thursday and Friday by Public Policy Polling (PPP) shows a dead heat, with Brown one point ahead (48% to 47%). A third survey conducted on Monday by Rasmussen Reports has Coakley ahead by nine (50% to 41%).
And analyzes:
The big spread in results among the polls, and differences apparent within two of them, are all consistent in supporting one finding: The lower the turnout, the better the odds for Scott Brown. These differences indicate that the voters most interested and most likely to vote are Republican, while Democrats are more blase.
Nate Silver also looks at the conflicting polls.