Nate Cohn @Nate_Cohn
@jon_m_rob is it that wacky? i mean, there's definitely a little loss on weighting on 3 instead of 4 cats. But enough to discount an N=3000 (!) poll off the file, weighted by party reg and file race? whatever its shortcomings, might be about as good as single public polls get — PolitiTweet.org