On October 2, the U.S. Supreme Court agreed to hear a case concerning whether a state commission created to craft federal congressional districts violates the Elections Clause of the U.S. Constitution. In Arizona State Legislature v. Arizona Independent Redistricting Commission, a voter initiative amended the state constitution to give the authority of redistricting to a commission rather than the state Legislature.

In February, a District Court held the Elections Clause does not prohibit Arizona from using a voter initiative to give congressional redistricting authority to a redistricting committee.