Labor unions, money and elections intersect in the U.S. Supreme Court this week in a case testing the ability of states to restrict unions’ use of nonmember fees in political activities.

The state of Washington and a group of nonunion teachers are asking the justices to reverse a state Supreme Court ruling that struck down a state law requiring unions to obtain nonmembers’ affirmative assent before using their agency shop fees for political purposes. Washington v. Washington Education Association, No. 05-1657; Davenport v. Washington Education Association, No. 05-1589.