Dropsite news is reporting that Iranian sources told them Negotiators for Iran personally notified JD Vance that Witkoff and Kushner were using market manipulation to make money off negotiations and had made at least 9 billion. That they weren't actually negotiating they were just using the peace talks to personally profit. And that reps for Witkoff had discussed taking 4.5 billion of that money and transferring it to Iranian people in essence a bribe to allow them to continue the scam.
Vance has not confirmed or denied the report
During the U.S.-Iran talks in Lake Lucerne, Switzerland in late June, Iranian negotiators sent a private message to Vice President JD Vance through an intermediary. The Iranians warned Vance that the continued presence of President Donald Trump’s Special Envoy Steve Witkoff and son-in-law Jared Kushner would undermine the chance of turning the June 17 framework into an enduring deal, a senior Iranian official told Drop Site.