Seth Moulton closing gap on progressive Democrat Ed Markey in Massachusetts Senate primary

A new poll shows Rep. Seth Moulton closing in on Sen. Ed Markey in the Massachusetts Senate primary, with Markey leading by 5 points. The race is one of the most contested primaries in the country. Markey has the backing of the Democratic establishment, while Moulton has been endorsed by groups like VoteVets PAC.