The North Carolina Republican had already made up his mind to leave the Senate, but the run-in with the president over Medicaid moved up the timeline of the announcement.

The balance of the Senate could rest on the shoulders of North Carolina after Senator Thom Tillis announced he won't seek ...

Even the most competitive and evenly balanced states are infected by the same contagion as the hardened one-party states.

Sen. Thom Tillis’ decision not to seek reelection is jolting what was already expected to be a fierce battle for his seat, which will now be wide open in 2026.