Colorado

Secretary of State Jena Griswold on Friday directed county clerks to begin the audit of a random selection of ballots after this month’s general election. A press release said that this risk-limiting audit, the only statewide one in the country following most elections, provides a “high statistical level of confidence that the outcome of an election is correct and reflects the will of the voters.” Colorado conducted its first statewide audit in 2017, covering all counties that used machines to tally their votes. Two counties, Jackson and San Juan, do not perform an audit because their ballots are hand counted. The secretary of state’s office randomly chose the ballots for each clerk to review using a 20-digit number, generated from multiple rolls of a 10-sided die. “If what the audit board reports matches how the voting system tabulated the ballots, the audit concludes,” Griswold’s website explains. “If there are discrepancies, additional ballots are randomly selected to compare until the outcome has been confirmed. If the wrong outcome was reported eventually all of the ballots will be examined and a new outcome will be determined.”

Colorado was one of 21 states targeted by Russian operatives during the 2016 election. But unlike many others, the state has spent years implementing top-tier cybersecurity measures and audits to prevent hackers from entering its systems and interfering with the election process. Colorado receives top marks in the three most important election security categories, according to a February report from the left-leaning Center for American Progress comparing the election security of all 50 states:

Adhering to minimum cybersecurity standards for voter registration systems
Carrying out elections with paper ballots
Conducting robust post-election audits

… In 2017, Colorado became the first state to carry out mandatory risk-limiting post-election audits, which are widely considered the gold standard, according to the Center for American Progress. Risk-limiting audits involve manually checking a sample of ballots, and providing statistical evidence that the election outcome is correct. They have a high probability of correcting a wrong outcome, according to the US Election Assistance Commission. A risk-limiting audit could lead to a full manual recount if there is not enough evidence to prove that the reported outcome is correct, the commission stated.