Candidates for every office from governor to state representative are revving up their get-out-the-vote efforts as they work to pull sympathetic voters to the polls on a Primary Day officials warn could see a low turnout.
Among the congressional races, the most closely watched primary is in the 6th Congressional District, where nine-term incumbent Rep. John Tierney is facing four Democratic challengers. Tierney has targeted one of those challengers - businessman and Iraq War veteran and businessman Seth Moulton - with television ads linking him to Republicans who support gun rights and oppose abortion rights.
Whoever wins the Democratic primary will face former Republican state Sen. Richard Tisei in November.
The other down ticket races have received less attention.