The DSCC, NAACP, LULAC, and the League of Women Voters filed four separate legal challenges to Trump's mail ballot executive order on 1 April 2026, one day after signing 1. The speed of filing is itself evidence: preparing federal litigation of this scope requires weeks or months. All four organisations had briefs ready before the order was published.
The coordinated response opens multiple legal fronts simultaneously. Each challenge attacks the EO on different constitutional grounds, from the Elections Clause reserving election administration to states, to due process concerns about federal prosecution threats against county officials. The Brennan Center for Justice had already characterised the order as exceeding presidential authority 2. First temporary restraining order hearings are expected within days.
The litigation timeline matters as much as the legal arguments. Even if courts ultimately block the EO, any delay in issuing injunctions leaves election officials uncertain about their obligations. The plaintiffs' strategy appears designed to secure emergency relief quickly enough to prevent the order from disrupting ballot preparation cycles that begin months before November.