Roe effect
The Roe effect is a hypothesis about the long-term effect of abortion on the political balance of the United States, which suggests that since supporters of abortion rights cause the erosion of their own political base, the practice of abortion will eventually lead to the restriction or illegalization of abortion. It is named after Roe v. Wade, the U.S. Supreme Court case that effectively legalized abortion nationwide in the U.S. Its best-known proponent is James Taranto of the Wall Street Journal who coined the phrase "Roe effect" in Best of the Web Today, his OpinionJournal.com column.