Donald Trump has thrown fresh doubt over any near-term deal with Iran, warning that Tehran has not yet “paid a big enough price” even as both sides appear to be exchanging proposals.

The comments cut against hopes for a diplomatic breakthrough. Reports indicate Iran submitted a 14-point peace proposal and has now received a US response, according to Tehran’s foreign ministry. Iranian officials say they are reviewing that reply. But Trump has signaled deep skepticism that the Iranian plan can satisfy Washington, and he has floated the possibility that the four-week-old ceasefire could still unravel.

The message from Washington is blunt: a live channel with Tehran does not guarantee a lasting peace.

The tension lies in the gap between process and trust. On paper, the exchange of proposals suggests diplomacy still has room to move. In practice, Trump’s language raises the stakes and narrows the path forward. By framing Iran’s past conduct as insufficiently punished, he suggests any agreement must clear a much higher political bar before he will treat it as credible.

Key Facts

  • Trump said Iran has not “paid a big enough price” for past actions.
  • Iran says it has received a US response to its 14-point peace proposal.
  • Tehran is reviewing the US reply, according to its foreign ministry.
  • Trump has suggested the four-week-old ceasefire could end.

That matters because ceasefires often fail not only from direct escalation, but from public signals that undercut confidence before negotiators can test the terms. Sources suggest both governments still see value in keeping the channel open, yet the public posture from Washington points to a harder line. For observers, the question now is not whether talks exist, but whether either side can turn an exchange of documents into terms strong enough to survive domestic pressure and regional suspicion.

The next move will likely come from Tehran’s review of the US response and from any follow-up message out of Washington. If the ceasefire holds, negotiators may still have a narrow window to define what a workable agreement looks like. If it breaks, this latest exchange may be remembered less as a breakthrough than as a final warning that diplomacy without trust rarely lasts.