COGOP Risk-Limiting Audit Briefing Nov 28, 2023 - PART 1 Unlisted Video

Part 1 of this briefing provides an overview of critical issues with the risk-limiting audit (RLA) during November 2023 election in Colorado. This includes the biased selection of contests to audit in each county and using RLA software rather than "a manual random audit" [by comparing the audited ballots to the cast vote record (CVR) for that ballot card] as required by Colorado statute. In Part 2, we demonstrate how to use the RLA audit tool to evaluate sample sizes and discuss some options to challenge the RLA implementation. As conducted, the RLA fails to achieve a 3% risk limit for most contests in Colorado.