https://www.mercurynews.com/2019/10/04/california-has-a-new-deepfakes-law-in-time-for-2020-election/

California Gov. Gavin Newsom has signed into law a bill that aims to protect voters and political candidates from deepfakes in time for the 2020 election.

AB 730, written by Assemblyman Marc Berman, D-Palo Alto, prohibits distribution of doctored video or audio of a candidate “with the intent to injure the candidate’s reputation or to deceive a voter into voting for or against the candidate” unless the media is clearly marked as fake.