Only three of Alabama’s seven congressional districts will hold binding primaries Tuesday in the wake of a U.S. Supreme Court decision that prompted Republicans in a handful of southern states to throw out their congressional maps.

Alabama voters will choose nominees for U.S. Senate, governor and a full slate of state and local offices.

Only three of Alabama’s seven congressional districts will hold binding primaries Tuesday in the wake of a U.S. Supreme Court decision that prompted Republicans in a handful of…