Over the past week, Clinton made headway among moderate, male and white voters, according to the tracking poll.
Clinton jumped 7 points among moderate voters from last week's tracking poll, now leading Trump 58-33 in that subgroup, according to NBC News.
Trump's lead among male and white voters narrowed since last week's tracking poll. He dropped five points among male voters, to lead Clinton 51-42, and he dropped four points among white voters, now leading Clinton 50-41 among white voters in the tracking poll.
NBC News/Survey Monkey surveyed 9,355 registered voters online June 6-12 with a margin of error of 1.4 percentage points.