Matthew Yglesias @mattyglesias
I agree that all effect sizes of everything are small, but what I think is truly overstated is the notion that it’s impossible for political movements to restrain activists and practice message discipline. — PolitiTweet.org
Brendan Nyhan @BrendanNyhan
What if I told you that all of these can be true? -Ds moved left -Activists pushed high-profile unpopular positions… https://t.co/fJoSoJiWyc
