Tom Allen (D): 41 (43) (42) (38) (42) (42) (42) (38)(Figures in parenthesis represent results from previous months.)
Susan Collins (R-inc): 57 (53) (55) (53) (49) (49) (52) (54)
For reasons that are unclear, the Rasmussen folks haven't included breakdowns by party in this release.
So the fact that she's expanded her lead here--and that it's moved into the mid-teens--has to be a huge comfort to Sen. Collins and her team.
Before this poll, Rep. Allen had a plausible, long-shot path to victory.
But with this result, the Allen team now has to hope for an extraordinary, once-a-decade electoral anomaly on Tuesday.
That kind of thing is probably more likely to happen in a 100 year flood election like this one. But it remains awfully unlikely.