Colorado has completed a first-of-its-kind statewide election audit, which drew attention from outside the state, with all participating counties passing. That means the so-called risk-limiting audit showed the state’s vote tabulating machines properly counted ballots from the election that ended earlier this month. The audit involved a manual recount of a sample of ballots from the more than 50 counties that had elections this year and compared them with how they were interpreted by tabulating machines.