On August 25, 2026, a divided panel of the U.S. Court of Appeals for the Fourth Circuit set aside guidance by the FCC’s Media Bureau stating that two types of political advertising were entitled to the favorable “lowest unit charge” (“LUC”) rate: ads paid for as “party coordinated expenditures,” meaning ads paid for by a party in coordination with a federal candidate, and ads placed by joint fundraising committees involving a federal candidate. This question had become particularly salient after the Supreme Court’s decision in June that struck down limits on party coordinated expenditures, allowing unlimited party spending in coordination with candidates, as we explained here. The Fourth Circuit’s ruling was in response to a challenge to the Media Bureau’s Public Notice by four Democratic candidates for federal office. The ongoing litigation has a direct and immediate impact on broadcasters and political advertisers, but its broader significance may lie in what the Fourth Circuit said about judicial review of bureau-level FCC actions.