A New Orleans magician is behind the artificial intelligence used to impersonate President Joe Biden for a robocall sent to New Hampshire Democrats urging them not to vote in the primary. However, he said a consultant for a rival Democratic campaign paid him to do so.

Paul Carpenter told NBC News that Steve Kramer, who has worked on a ballot access campaign for Democratic presidential candidate Dean Phillips, hired him in January to use AI to imitate Biden’s voice. He shared text messages, call logs, and Venmo transactions with the outlet.