The son of a former Franciscan brother and nun, Christianity is deeply important to John Fugelsang, and inspired him to write the new book “Separation of Church and Hate.” “They don’t really follow this holy book they wave around like a prop,” Fugelsang tells Ali Velshi. Fugelsang argues that the rhetoric of Christianity “has been hijacked” by right-wingers and Christian nationalists whose ideology actually runs counter to the teachings of Jesus.