https://www.rollcall.com/2019/04/22/mueller-report-russia-hacked-state-databases-and-voting-machine-companies/ https://www.rollcall.com/2019/04/22/mueller-repor

https://www.rollcall.com/2019/04/22/mueller-report-russia-hacked-state-databases-and-voting-machine-companies/ https://www.rollcall.com/2019/04/22/mueller-report-russia-ha... https://www.voanews.com/2020-usa-votes/us-confirms-iran-hacked-voter-registration-data-1-state https://www.voanews.com/2020-usa-votes/us-confirms-iran-hack... Voter registration databases. If you get access, you can send extremely targeted messaging at a huge amount of people. I wouldn't put it past someone to find key counties and cities, and take a number of actions to influence the vote.