GOP Senators Grapple with Trump's Cabinet Loyalty Test

Donald Trump's allies are intensifying efforts to challenge Republican senators they view as insufficiently loyal, targeting figures like Sen. Joni Ernst and Sen. Bill Cassidy. This "RINO-hunting" aims to replace moderate Republicans with Trump loyalists, as seen in previous House races. The strategy involves early candidate endorsements to avoid splitting the anti-incumbent vote, with potential challengers emerging in key states. Despite the pressure, some senators, like Susan Collins, remain defiant, emphasizing their constitutional duties over party loyalty.