Frank Schaeffer is the bestselling author of Crazy for God: How I Grew Up as One of the Elect, Helped Found the Religious Right, and Lived to Take All (or Almost All) of It Back. He is the son of the late evangelist Francis Schaeffer and considered himself a lifelong Republican. He voted for John McCain in 2000, and McCain even endorsed one of Schaeffer’s earlier books on military service. But on Friday, Schaeffer published an open letter to McCain excoriating the Arizona senator. [includes rush transcript]