Rosin partly has specialized in writing about religious-political issues, in particular the influence of evangelical Christians on the 2004 U.S. presidential campaign.[12] She is the author of God's Harvard: A Christian College on a Mission to Save America, published in September 2007. Based on a New Yorker story, the book follows several young Christians at Patrick Henry College, a new evangelical institution that teaches its students to "lead [the] nation and shape [the] culture."