Many county elections officials release downloadable lists of who has voted (but, of course, not who they voted for). For example, here's King County, WA (Seatt

Many county elections officials release downloadable lists of who has voted (but, of course, not who they voted for). For example, here's King County, WA (Seattle), which is updated 1-2x/day during balloting: https://www.sos.wa.gov/elections/research/2022-general-election.aspx https://www.sos.wa.gov/elections/research/2022-general-elect... Here's at least one option for Los Angeles County: https://www.lavote.gov/home/voting-elections/current-elections/voter-status-and-participation https://www.lavote.gov/home/voting-elections/current-electio... They're often called "matchbacks," since it's a list of voter IDs that campaigns match back to the list of registered voters.