After Billy Graham, the famous preacher and presidential confidante, passed away in 2018, Luke Nichter was one of the first researchers to get a glimpse at previously unseen Graham diary entries kept at the evangelical Wheaton College. Nichter’s new book The Year That Broke Politics: Collusion and Chaos in the Presidential Election of 1968, out today, is the first to be based on Graham’s personal diaries. The entries reveal that incumbent Democratic President Lyndon B. Johnson worked behind the scenes that year to help get Republican Richard Nixon elected. In a phone conversation on July 17, Nichter explained how the...