His fear became a self-fulfilling prophecy. Republican voters, who once used mail-in balloting disproportionately, abandoned the practice. Democratic voters, meanwhile, embraced it. This led Republicans to engage in various sabotage efforts, which my colleague Eric Cortellessa has been tirelessly uncovering for months. These include banning swing states from processing mail-in ballots prior to election day (in order to engineer the very counting delays Trump has warned are a sign of fraud) and, in Pennsylvania, outright refusals by some GOP elections officials to count mail-in ballots that are postmarked by November 3 but arrive after that date despite a ruling by the U.S. Supreme Court that they do so. How this developing constitutional crisis will play out is anyone’s guess. It was certainly beyond my wildest imagination that vote by mail would be at the center of such a crisis when we first started to promote the policy eight years ago. But rest assured, my colleagues and I will be covering events as they unfold as carefully and relentlessly as we can.