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

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.

Jeff Flake. Bob Corker. Mitt Romney. And now, Sen. Thom Tillis of North Carolina. The roll call of Republican senators who have called it quits rather than endure a political career sideways with President Donald Trump is long and apparently,