High-Stakes Primaries Test GOP Allegiances and Control of Congress

Key races in South Carolina, Nevada, and Maine highlight internal Republican conflicts and strategic endorsements.

Nancy Mace faces a primary challenge from Catherine Templeton in South Carolina, with Kevin McCarthy backing Templeton.
Former President Trump has endorsed Mace, reversing his previous stance and adding complexity to the race.
Nevada's Senate primary sees a close contest between Sam Brown and Jeff Gunter, with Trump endorsing Brown.
Maine's second congressional district features a competitive Republican primary to challenge Democrat Jared Golden.
Outcomes of these primaries could significantly impact the balance of power in Congress and future legislative agendas.