Cornell University law professor Michael C. Dorf explains why a group of legislators in Ohio recently voted to adopt a law that prohibits abortion of any fetus with a “detectable heartbeat”—around six weeks after conception—in clear violation of the U.S. Supreme Court’s 1973 holding in Roe v. Wade. Dorf describes what a “Trump Court” might do (and what it might not do) with respect to this Ohio law and others like it.