If getting wide news coverage.
@Keepcalmandchill this should qualify for sure
https://apnews.com/article/parody-ad-ai-harris-musk-x-misleading-3a5df582f911a808d34f68b766aa3b8e
additionally, here are other outlets that reported on this:
https://www.google.com/search?q=elon+shares+deepfake+video+of+kamala&rlz=1C5CHFA_enUS958US959&oq=elon+shares+deepfake+video+of+kamala&gs_lcrp=EgZjaHJvbWUyBggAEEUYOdIBCDQ5NDdqMGo3qAIAsAIA&sourceid=chrome&ie=UTF-8
The article links to [a reply to] the Musk video: https://twitter.com/4givensaint40/status/1615973049798643717?t=OaHXznWWYFB5Yr9N04Aahw&s=19
Didn't spot a link to any Trump videos, but says they exist.
@NLeseul I'm assuming YES, and moreover I'd argue that this has to be YES, because things that are widely known to be fake still go viral among populations that claim that they are not fake.