The text of the Islamabad Memorandum of Understanding still had not been published as of Wednesday 17 June. JD Vance, the US Vice President who signed for Washington, promised it "as early as tomorrow" on Tuesday; Wednesday came and went with nothing released1. Senate Majority Leader John Thune formally pressed Trump for the document, and Senate Republicans signalled they will not back the deal without seeing it2. Minority Leader Chuck Schumer demanded a Gang of Eight intelligence briefing, the closed session in which the eight senior congressional leaders review classified material.
US officials told CNN the document can stay vague because the binding terms sit outside it: Iran's critical commitments are not written into the signed text at all, and exist as verbal side-deals through the back-channel3. Vance described the instrument as "approximately a page and a half". An agreement whose binding terms are spoken rather than signed cannot be enforced by either legislature, which is precisely why the IRGC and Mojtaba Khamenei have left it unsigned at their end.
The zero-transit reality in the strait and the empty insurance line that pinned more than five hundred ships in place both turn on terms no document records. A blank text means either party can later deny a commitment with no paper to contradict it, and that is the structural weakness the Majlis revolt and the Senate's refusal to endorse are both probing from opposite sides.
