Louisiana holds partial federal primary with House races suspended after Callais ruling

Louisiana voters cast ballots on May 16, 2026, in the Republican Senate primary between incumbent Bill Cassidy and Trump-backed challengers, while all six U.S. House primary races remained frozen by Gov. Jeff Landry's April 30 executive order. Landry invoked emergency election powers after the Supreme Court's 6-3 ruling in Louisiana v. Callais struck down the state's congressional map as an unconstitutional racial gerrymander. More than 42,000 absentee ballots already cast for House races were voided.