Nate Cohn @Nate_Cohn
This theory makes sense, but most of the online polls aren't weighted/modeled nearly as extensively as you'd guess. Of the national online-only pollsters, it's really just YouGov https://t.co/89KQwfsTN0 — PolitiTweet.org
Kevin Collins @kwcollins
Hypothesis: phone surveys are more subject to differential non-response than online and/or because non-response gen… https://t.co/Uo9UaYZAzc