According to Newsom himself, the legislation was drawn up in response to Elon Musk sharing a parody videomocking Kamala Harris using an altered version of her voice.
I just signed a bill to make this illegal in the state of California.
— Gavin Newsom (@GavinNewsom) September 17, 2024
You can no longer knowingly distribute an ad or other election communications that contain materially deceptive content -- including deepfakes. https://t.co/VU4b8RBf6N