[14][15][16] The Center argues that approval voting is superior to other proposed electoral reforms for multiple reasons, including accuracy, simplicity, and tractability.

Election Science was just one of many organizations to endorse the effort, including Show Me Integrity and The League of Women Voters.

[27] The ballot measure put forth to switch St. Louis to approval voting, proposition D, passed on Tuesday, November 3, 2020, with 68.1% in favor.

[28] The following year, the center awarded five grants to voting reform organizations focused on Seattle, the San Francisco Bay Area, Austin, Missouri, and Utah.

Due to the process by which ballot measures are adopted in Seattle, the city council added instant runoff voting as a direct rival.

[30] Seattle voters elected to change their voting system by a slim margin–154,424 in favor, 148,901 against–and chose instant runoff over approval.