The Brennan Center, along with co-counsel O’Melveny & Myers, filed an amicus brief on behalf of itself and Professor Robert F. Williams in a case challenging the state’s congressional map as a partisan gerrymander under state law. The brief argues that South Carolina’s constitution offers greater protection from partisan gerrymandering than the federal constitution does, and that the South Carolina Supreme Court should find that its state constitution limits intentional manipulation of the electoral process to exclude disfavored voters from particular districts. On September 17, 2025, the Court held that partisan gerrymander claims are nonjusticiable political questions under South Carolina’s constitution.