With President Trump’s nomination of Brett Kavanaugh to replace retiring Justice Anthony Kennedy on the Supreme Court, abortion has once again returned to the forefront of the national political debate. Conservatives and liberals are alternately excited and enraged by the prospect of the court securing the pivotal fifth vote needed to overturn Roe v. Wade, the 1973 decision discovering a constitutional right to abortion.

The Left’s case against Roe relies in part on the perception that the ruling enjoys broad public support. Simply put, abortion-rights advocates argue that the law shouldn’t be overturned because most people want to keep it.