The US supreme court has cleared the way for New Hampshire to prohibit student IDs as a form of voter identification ahead of November's midterm elections. In a brief unsigned order, justices sided with a Republican National Committee-backed appeal, citing the longstanding Purcell principle that lower federal courts should not alter election rules too close to election day. The irony is structural. New Hampshire required voter ID since 2012 but accepted student IDs as valid. Earlier this year, Republican governor Kelly Ayotte signed a law tightening the rules by removing student IDs from the list of standard forms of voter ID. State officials then issued a directive barring student IDs even as backup "safety valve" identification. The rule change happened close to the election; the court's rationale for preserving it is that reversing it would also happen close to the election. The Purcell principle, designed to prevent confusion, here functions as a ratchet: whoever changes the rules first wins. Voting rights advocates challenged the directive, arguing it would disenfranchise young voters who may not have access to a driver's license or passport. A lower court judge agreed and blocked the directive. State officials then escalated to the supreme court, which reversed the block without disclosing the vote breakdown. Justice Ketanji Brown Jackson dissented, arguing the lower court was merely asking state officials to correct guidance that "could mislead voters and local election workers." The dispute sits inside a broader national campaign. Donald Trump and allied Republicans argue voter ID laws are necessary to prevent mass voter fraud. Research from the Brennan Center and others has found little evidence that voter fraud affects election outcomes at any meaningful scale. What voter ID laws do affect, according to a University of Maryland survey, is access: low-income voters who cannot afford government-issued ID, voters lacking documents like birth certificates needed to obtain one, and rural voters far from ID-issuing offices. New Hampshire's college towns — home to institutions like Dartmouth, UNH, and Keene State — are among the communities most directly affected. Students who registered to vote in-state now need alternative identification they may not possess. The practical effect is a filtration layer that correlates with age and income, not with fraud risk. The court's procedural framing avoids ruling on the merits of student ID bans. But procedural non-decisions have substantive consequences. By declining to intervene against the state's new restriction while simultaneously blocking the lower court's attempt to intervene for voters, the supreme court made a choice about which status quo to protect. The Purcell principle is neutral in theory; in practice, it advantages whoever moved first. This is part of a pattern across multiple states where voter ID requirements are being tightened through legislation and then shielded from judicial review by proximity to election dates. The mechanism is elegant: pass restrictive laws in legislative sessions, then invoke election-proximity doctrines to prevent courts from reviewing them before they take effect. If the pattern holds, the window for legal challenge narrows to the period immediately after one election and well before the next — a window state legislatures can simply avoid.
