A federal judge blocked one of California’s new AI laws on Wednesday, less than two weeks after it was signed by Governor Gavin Newsom. Shortly after signing AB 2839, Newsom suggested it could be used to force Elon Musk to take down an AI deepfake of Vice President Kamala Harris he had reposted (sparking a petty online battle between the two). However, a California judge just ruled the state can’t force people to take down election deepfakes – not yet, at least.

AB 2839 targets the distributors of AI deepfakes on social media, specifically if their post resembles a political candidate and the poster knows it's a fake that may confuse voters. The law is unique because it does not go after the platforms on which AI deepfakes appear, but rather those who spread them. AB 2839 empowers California judges to order the posters of AI deepfakes to take them down or potentially face monetary penalties.

Perhaps unsurprisingly, the original poster of that AI deepfake – an X user named Christopher Kohls – filed a lawsuit to block California’s new law as unconstitutional just a day after it was signed. Kohls’ lawyer wrote in a complaint that the deepfake of Kamala Harris is satire that should be protected by the First Amendment.

On Wednesday, United States district judge John Mendez sided with Kohls. Mendez ordered a preliminary injunction to temporarily block California’s attorney general from enforcing the new law against Kohls or anyone else, with the exception of audio messages that fall under AB 2839.

Read for yourself what Judge Mendez said in his decision: