On Friday, New Hampshire Republican Gov. Chris Sununu transformed his state into ground zero in the assault on voting rights. By signing HB 1264 into law, Sununu effectively imposed a poll tax on college students, compelling many of them to pay hundreds of dollars in fees to establish residence in the state before they’re permitted to vote in New Hampshire. Once it takes effect, the law is almost certain to chill the franchise of younger Democratic-leaning voters—to an extent that could swing the state’s famously close elections. But the measure’s stringent new requirements do not kick in until July 2019, giving Democrats a single opportunity to repeal it before it disenfranchises a key portion of their base. In New Hampshire, the November midterm elections won’t just determine control of the state government. It will decide whether Republicans will be successful in their years-long quest to suppress the college vote, a move that would help them further entrench their own political power. HB 1264 is the latest and most sweeping voter suppression bill passed by New Hampshire Republicans in the wake of the 2016 election. Hillary Clinton carried the state by a slim margin, as did Democratic Sen. Maggie Hassan, who defeated incumbent Republican Sen. Kelly Ayotte by about 1,000 votes. At the same time, Republicans retook the governorship and maintained control of the Legislature, giving them total control of the state government. They used that power to begin restricting access to the ballot under the pretext of preventing voter fraud.