Service Performance of Election and Political Mail During the November 2020 General Election [open pdf - 4MB]
From the Objective: "Our objective was to evaluate the U.S. Postal Service's service performance of Election and Political Mail during the November 2020 general election. We also evaluated the handling of mail for the Georgia Senate runoff election held on January 5, 2021. [...] We evaluated the Postal Service's performance leading up to and during the November 2020 general election. To do so, in October, we conducted unannounced site visits at 102 processing plants and 1,710 delivery/retail units, covering all 50 states, the District of Columbia, and Puerto Rico. During the week of the general election, we conducted daily, announced site visits at 27 processing plants and 56 delivery/retail units. We also observed international Election Mail operations at the Chicago, New York, Los Angeles, San Francisco, and Miami International Service Centers (ISC) during the 2020 general election and Georgia Senate runoff election."
United States Postal Service, Office of the Inspector General, Audit Report No. 20-318-R21