Tillis, who is up for re-election next year in battleground North Carolina, voted against advancing a bill for Trump's domestic policy agenda Saturday evening.

U .S. Sen. Thom Tillis, a North Carolina Republican, broke with his party Saturday and said he would not support the federal "One Big Beautiful Bill Act," the sweeping budget package that would enact much of President Donald Trump's agenda.

The president said he will meet with potential primary challengers to the Republican lawmaker "over the coming weeks,