By rights, Ted Cruz should be locking up the evangelical vote in Iowa. Donald Trump is a mainline Protestant who barely goes to church. Ben Carson's 15 minutes of fame is over. Marco Rubio's faith journey has taken him from Catholicism to Mormonism to evangelicalism and back to Catholicism.
By contrast, Cruz is the real deal, on paper anyway. He's a Southern Baptist born and bred, a preacher's kid. He announced his candidacy at the university Jerry Falwell founded and has made the rounds from pastor to evangelical pastor. No one has a better record in Congress on the social issues.