Matthew Yglesias @mattyglesias
@jbarro @JimPethokoukis @jonathanchait It’s pretty typical for issues to be low-polarization when they first hit the agenda and become polarized over time as salience increases (see abortion). Recommend @DKarol’s book on the specifics of the environmental case. https://t.co/kBL1KHpQNM — PolitiTweet.org
