Rep. Ayanna Pressley (D-Mass.) said Tuesday she will not launch a primary challenge to Sen. Ed Markey (D-Mass.) and will instead run next year for reelection to her U.S. House seat.
Why it matters: Markey, 79, has faced pressure to step aside amid a growing generational revolt in the Democratic party, with Rep. Seth Moulton (D-Mass.), 47, already running to unseat him.