Lara Trump, President Donald Trump’s daughter-in-law, is the leading potential candidate to run for Senate from North Carolina with Donald Trump’s backing, multiple sources tell CNN.

Republican Sen. Thom Tillis said Sunday that he will not seek reelection next year in battleground North Carolina. The stunning announcement comes just hours after President Donald Trump said he will start fielding primary challengers to run against Tillis following the senator's vote against advancing Trump's One Big Beautiful Bill Act to a vote in the Senate.

Senate Republicans can afford to lose no more than three of their own votes on the bill, but two already are opposed and others remained undecided.

Senate Republicans employ an unusual accounting tactic to push Trump's tax bill forward, sparking concerns over national debt and the integrity of the Senate filibuster.