Matthew Yglesias @mattyglesias
Just restricted to congress, “polarization” = — Ideological sorting of congressional parties — Growing correlation between issue-positions — Widening gap in ideological space between party medians These are related, but different, ideas that may have different roots. — PolitiTweet.org
Matthew Yglesias @mattyglesias
@DKarol I always think the big problem with these discussions is that “polarization” denotes several different conceptually distinct trends.
