The North Carolina Supreme Court ruled in February that the state’s congressional maps violated the state constitution by illegally favoring Republicans. The map — drawn by GOP legislators — could have given the party control of as many as 11 of the closely divided state’s 14 districts.
But the Republican legislators argued in an appeal to the U.S. Supreme Court that the state court had extremely limited authority to police the legislature on federal election matters — a theory known as the “independent state legislature” theory.
The theory holds that state legislatures have near-uncheckable authority to set procedures for federal elections — and state courts have either a limited or even no ability to rule on those laws. The theory is based on a pair of clauses in the constitution, the Electors Clause and the Elections Clause, that mention state legislatures but do not explicitly mention the judiciary.