He blogs regularly about religious and mental health issues at www.wthrockmorton.com. Earlier this month, the evangelical writer David Barton’s new book, “The Jefferson Lies,” hit the New York Times bestseller list for hardcover nonfiction. Barton isn’t popular, however, only with the ordinary American reader. On May 8, John Boehner authorized the use of Statuary Hall in the U.S. Capitol for a religious service to commemorate the first inauguration of George Washington. Among the speakers was Barton, who is revered by social conservatives because he argues that the nation was founded primarily by evangelical Christians on explicitly Christian teachings.Barton — “one of the most important men alive,” according to Glenn Beck — is frequently criticized as a pseudo-...