Since U.S. District Judge Barbara Crabb ruled the National Day of Prayer unconstitutional, critics have declared what they think of her: A Marxist. A moron. A disgrace. Crabb, a 31-year veteran of the bench in this liberal state capital, has faced harsh criticism before. In her ruling last month, Crabb said the law creating the tradition being observed Thursday is an unconstitutional call to religious action. Crabb graduated from the University of Wisconsin law school in 1962.