“A couple of things are striking about the pro-[Scott] Brown spending. It’s always entertaining to watch someone self-described as an independent, political free operator getting so much support from national conservative groups. And it’s especially entertaining given that while many of these groups support ideological purges from their party, Brown is … a liberal, according political scientist Boris Shor. He is in fact more liberal than Dede Scozzafava, the unfortunate, erstwhile GOP nominee in the special House election in New York a few months back. Shor writes:

‘Browns score puts him at the 34th percentile of his party in Massachusetts over the 1995-2006 time period. In other words, two thirds of other Massachusetts Republican state legislators were more conservative than he was. This is evidence for my claim that hes a liberal even in his own party. Whats remarkable about this is the fact that Massachusetts Republicans are the most, or nearly the most, liberal Republicans in the entire country.'”
— Robert Schlesinger, “Scott Brown Benefits From Late National Republican Money,” US News, Jan. 17, 2010.