Sidestepping the thorny issue of partisan gerrymandering, the U.S. Supreme Court on Monday turned back a major challenge to Wisconsin’s redistricting plan because the plaintiffs lacked standing.

In a second partisan gerrymander challenge, the unanimous court, in an unsigned opinion, rejected an attempt to change Maryland’s Sixth Congressional District. A group of Republican voters claimed the district had been rigged by the Democratic-controlled Maryland General Assembly to ensure the election of a Democratic member of Congress. They claimed the gerrymander was in retaliation for their political views.