
Walter Shapiro @MrWalterShapiro
Really interesting argument by a great political pollster. I would love to read a rebuttal, since I am quite convinced by @MarkMellman — PolitiTweet.org
Mark Mellman @MarkMellman
Is polling likely voters a misleading sham? an iconoclastic view in my latest column... https://t.co/BQwrdMVlNi