Doctored campaign video featuring US vice-president reposted by Tesla chief executive watched 128m times

Kamala Harris’s election campaign has accused Elon Musk of spreading “manipulated lies” after the Tesla chief executive posted a doctored video featuring the vice-president on his X account.

Musk reposted a manipulated Harris campaign video on Friday evening in which a fake Harris voiceover says: “I was selected because I am the ultimate diversity hire,” and that anyone who criticises her is “both sexist and racist”.

The video has been viewed 128m times on Musk’s account after the world’s richest man posted it with the words “this is amazing” followed by a laughing emoji. Musk owns X, which he rebranded from Twitter last year.

Amy Klobuchar, a Democrat senator, accused Musk of violating the platform’s guidelines. According to X’s synthetic and manipulated media policy, users are barred from sharing “synthetic, manipulated, or out-of-context media that may deceive or confuse people and lead to harm” although allowances are made for satire provided it does not “cause significant confusion about the authenticity of the media”.