Good luck making sense out of polls about the Massachusetts Senate race.
Following Democratic candidate Martha Coakley’s even-bigger-than-expected victory in the Dec. 8 primary, most political observers had assumed she would cruise in the final. That assumption has been looking questionable since last week, when a Rasmussen poll showed Coakley with just a nine-point margin over her Republican challenger, Scott Brown.
Then, last night, Public Policy Polling released the results of a survey showing Brown actually leading Coakley by a margin of 48 percent to 47 percent. Let the tea party begin!
A few hours later, the Boston Globe published a story about its own poll, in which Coakley is maintaining a comfortable 15-point lead.
So what’s going on here? Who knows?
Frankly, I would start by throwing out the Public Policy Polling survey — it’s a robocall. (“If Scott Brown, press 1. If Martha Coakley, press 2.”) Would you hang on the line? I wouldn’t.
I’ll also point out that the Globe’s poll was conducted by the University of New Hampshire Survey Center, a highly respected operation. I’m no polling expert, but I do know that Rasmussen gets mixed reviews.
Also, as best as I can tell from diving into the fine print, it looks like the Globe/UNH poll was the only one of the three in which respondents were specifically asked about the third candidate in the race, libertarian independent Joe Kennedy, who receives a not-insignificant 5 percent. Indeed, given the vagaries of polling, that alone could explain the difference between Rasmussen’s nine-point margin and the Globe’s 15-point spread.
What’s making everyone hypercautious is that we have absolutely no idea who’s going to turn out in the Jan. 19 special election. And what if there’s a blizzard?
My guess, though, is that Coakley’s right where you’d expect her to be with a little more than a week to go.

