Steven Pinker has a piece where he slams George Lakoff in The New Republic. Unfortunately like much of the best stuff in TNR this is behind a pay wall, though The American Scene has posted a snip. Chris has a lot of Lakoff criticism over at his old blog, and as a political liberal himself I hope that insulates him from the charge that he is biased in some way. I actually read Moral Politics: How Liberals and Conservatives Think
back in the late 1990s, and remember thinking a lot "where does this dude get off telling me what I think!" I was a more strident libertarian back then and I wasn't too happy about all the generalizations Lakoff made. Today I tend to have more respect for non-intuitive findings from cognitive science than I did back then, but, if Chris is right Lakoff doesn't really practice mainstream cognitive science ...