The landmark ruling now stands as the law of the land in Kansas with no path for an appeal. Because it turns on the state's Constitution, abortion would remain legal in Kansas even if the Roe v. Wade case that established a national right to abortion is ever reversed by the U.S. Supreme Court.

The decision turbocharged efforts among conservative legislators to ask voters to add an abortion ban to the Kansas Constitution. Lawmakers return to the capital, Topeka, next week.

The decision, in which one of the seven justices dissented, cites in its first sentence the first section of the Kansas Constitution's Bill of Rights: "All men are possessed of equal and inalienable natural rights, among which are life, liberty, and the pursuit of happiness." ...