Republican Senator Thom Tillis has announced he will not seek reelection next year, following President Donald Trump's threat of a primary challenge due to Tillis's opposition to Trump's tax and immigration bill. This decision throws the Senate race in North Carolina into uncertainty and poses a challenge to the Republicans' push to pass the proposed One Big Beautiful Bill Act by July 4. Tillis, 64, was one of two Republican senators who voted against starting debate on the bill, arguing it could cause hundreds of thousands of his constituents to lose Medicaid coverage. Trump criticized Tillis, calling him a "talker and complainer" and announced plans to meet with potential primary challengers. Tillis has accused Republicans of rushing to pass a flawed bill and criticized Trump's advisers for not informing him that the bill would break his pledge not to cut Medicaid benefits.