Moulton to take on incumbent Markey in Massachusetts Democratic Senate primary
Rep. Seth Moulton is challenging incumbent Sen. Ed Markey in the Massachusetts Democratic Senate primary. Moulton has secured enough delegate support to appear on the ballot, while Markey has received the party's endorsement. The primary is set for September 1, and both candidates have agreed to participate in one debate this summer.
- ▪Seth Moulton has garnered enough delegate support to appear on the primary ballot against Ed Markey.
- ▪Markey received over 50% of the party's endorsement, winning nearly 73% of the delegates' support.
- ▪The Massachusetts primary is one of the most closely watched contests in the country.
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Politics Rep. Seth Moulton to take on Sen. Ed Markey in Massachusetts Democratic Senate primary May 30, 2026 / 5:51 PM EDT / AP Add CBS News on Google U.S. Rep. Seth Moulton, a moderate Massachusetts Democrat, secured enough delegate support Saturday to appear on the state's primary ballot as he challenges incumbent Sen. Ed Markey in this year's Senate race.Yet even though Moulton cleared a key hurdle to continue his Senate bid, it was Markey who won the party's endorsement after winning more than 50% of the delegation's support."You have a choice, you have to decide what the future looks like and what you're going to demand," Markey said Saturday in front of more than 4,000 delegates.The Massachusetts primary is Sept. 1.
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