Voters are set to decide whether to ratify a proposed constitutional amendment allowing the use of new congressional districts approved by state lawmakers in the mid-decade redrawing of U.S. House districts. The referendum, backed by Democratic officials, could boost Democrats' chances of winning control of the closely divided chamber. The state Supreme Court is considering whether the redistricting plan is illegal, which could invalidate the referendum results. The vote also tests voters' willingness to accept districts gerrymandered for political advantage. This comes six years after Virginia voters approved an amendment intended to reduce partisan gamesmanship. Both parties see the vote as crucial to their chances of securing a House majority in the fall.