The road to a Texas law that bans most abortions in the state, sidestepping for now the Supreme Court's landmark 1973 Roe v. Wade decision, began in a town called Waskom, population 1,600.

The Supreme Court's decision this past week not to interfere with the state's strict abortion law, provoked outrage from liberals and cheers from many conservatives. President Joe Biden assailed it. But the decision also astonished many that Texas could essentially outmaneuver Supreme Court precedent on women's constitutional right to abortion.

Texas' abortion law S.B. 8 follows a model first used in Waskom...