Link on gentleman's agreements. Vance says some written some are not but either way they only go by actions not words.
Didn't wait for Iran to sign as take more time and deal with it later
On fears money to Iran could end up with terrorists proxy groups Vance says they have ways of tracking where money goes.
Secret US-Iran proposals reveal fragile path toward broader nuclear deal
https://www.cnn.com/2026/06/18/politics/secret-us-iran-proposals------
But the sources emphasized that they are far from final. Iran has not signed any additional documents, as it did the 14-point memorandum of understanding, raising questions about whether the administration has overstated the commitments it has extracted from Iran and further emphasizing how quickly the fragile political effort to reach a final deal could fall apart.
“Some of them are written down, but fundamentally, whether they’re written down or spoken, this is why we structured the deal that we did, because we don’t trust words, we trust action, and we trust conduct, and so we’re going to reward conduct, and we’re not going to reward any words, whether they’re written on a sheet of paper or not,” Vance said.
US negotiators opted to move forward with releasing the signed MOU, without waiting for Iran’s senior leadership to sign off on the more detailed proposals on how to implement the 14 points, in part, because they did not want to delay the next phase of negotiations,