The official said the administration’s approach is being guided by a “No Dust, No Dollars” policy, meaning Iran would not receive sanctions relief or financial benefits without fully meeting its obligations.

Understandings have been reached on the enriched uranium stockpile and the reopening of the Strait of Hormuz, while final wording remains under negotiation.

The U.S. is prepared to resume military strikes if negotiations fail or produce what it considers a “bad deal.”