Live results: Moulton vies to unseat Markey in Massachusetts Senate primary

Sen. Ed Markey and Rep. Seth Moulton are duking it out for the Democratic nod in the Massachusetts Senate race. Moulton has made the race about generational change, arguing it's time for "a new generation of leadership." Markey has held the seat since 2013 and has served in Congress for a total of five decades....