Jonathan Alter, former editor of Newsweek, analyst for MSNBC, co-host of Sirius XM Alter Family Politics, Daily Beast columnist and the author of The Center Holds: Obama and His Enemies (Simon & Schuster, reprint 2014), argues that Democrats should support moderates over more liberal candidates in order to win in this year's midterms -- as he writes, "in Trump’s America, pragmatism is a moral imperative."