Deepfake videos have become more convincing as of late, especially recent ones from Ctrl Shift Face that show comedian/actor Bill Hader's face replaced by Tom Cruise. Those are amusing, but other deepfake software -- like those that places the faces of actors like Scarlett Johansson onto the bodies of porn stars -- are a disturbing invasion of their privacy.

On the political side, a deepfake video was doctored in a different way to make it seem like House Speaker Nancy Pelosi was drunk and slurring her words during a speech. At the time, Facebook refused to remove the video, saying it would instead display a third-party fact-checking article highlighting the fact the it had been edited.

California Assembly representative Marc Berman said that such videos could deceive the public and affect election outcomes. "Voters have a right to know when video, audio, and images that they are being shown, to try to influence their vote in an upcoming election, have been manipulated and do not represent reality," he said in a press release. "[That] makes deepfake technology a powerful and dangerous new tool in the arsenal of those who want to wage misinformation campaigns to confuse voters."

The American Civil Liberties Union, however, took issue with the law. "Despite the author's good intentions, this bill will not solve the problem of deceptive political videos," it said in a letter to Newsom. "It will only result in voter confusion, malicious litigation and repression of free speech."