Evangelical Christians hold great sway over Iowa’s Republican caucuses. They set back Donald Trump in 2016 when Ted Cruz finished ahead of him. Since then, Trump appointed conservative judges to the U.S. Supreme Court who voted to overturn Roe v. Wade, which provided federal abortion protections. He also has been found liable for sexual abuse. WSJ political reporter Jimmy Vielkind travels to Des Moines and its surrounding neighborhoods to speak with evangelical voters who support Trump despite misgivings about his personal life, and those who did so previously but may be going a different direction this election.