A Michigan court on Monday ruled that county prosecutors can enforce an abortion ban that has been on the books since 1931, exempting them from a different court’s ruling that blocked state officials from enforcing the law. The decision by the three-judge Court of Appeals panel marks a victory for anti-abortion county prosecutors in Michigan, who have sought to enforce the ban after the US Supreme Court overturned the landmark 1973 Roe v. Wade case and enabled states to outlaw abortion. Michigan’s law, one of several state abortion bans enacted before the Roe v. Wade ruling legalized abortion …