The polls had it right when it came to New Hampshire’s presidential primary results—for the most part, anyway. With just a few exceptions, the polls predicted that Donald Trump would win on the Republican side, and Vermont Senator Bernie Sanders would beat former Secretary of State Hillary Clinton by a wide margin.
But, historically the polls in New Hampshire haven’t been this accurate. So, what accounts for this increased accuracy? For an answer to that question, we turn to Steve Koczela, President of the MassINC Polling Group.