Seth Moulton

In Massachusetts, incumbent Sen. Ed Markey is once again facing a stiff primary challenge, with Congressman Seth Moulton looking to unseat his fellow Democrat.Touting his progressive roots, Markey has said if he wins, his next term will be his last. Moulton, meanwhile, says he’s looking to bring fresh ideas to the senate.On Wednesday, The two faced one another in western Mass. for their first Democratic primary debate.