The Conservative Case for Trump is a 2016 book written by Phyllis Schlafly, with Ed Martin and Brett M. Decker, arguing that American conservatives should vote for Donald Trump in the 2016 presidential election. It was published the day after Schlafly's death, four months after Trump secured the Republican Party nomination in May and two months before he won the general election. The authors describe Trump as someone who promises the most conservative presidency since Ronald Reagan's.