Markey, who has driven up concerns about his GOP opponent with a barrage of hard-hitting television ads, leads Gomez 54 percent to 41 percent, with only 4 percent of the respondents saying they were still undecided about whom to support in the June 25 election.
When you include voters who said they haven’t yet made up their minds but are leaning toward a candidate, the race tightens slightly, with 54 percent favoring Markey and 43 percent favoring Gomez.
Gomez is the candidate poll respondents find more likable and he holds the lead among unenrolled voters — the critical bloc of independents whose support he’ll need to top a Democrat in Massachusetts. But that margin is only 9 percentage points. Analysts believe that for a Republican to win in Massachusetts, he must win the unenrolled vote by a 2-to-1 margin.