Senate Republicans are increasing pressure for transparency and congressional involvement in a deal President Donald Trump has championed, aimed at ending the prolonged conflict in Iran. The deal, signed by Vice President JD Vance and Iranian officials, has not yet been disclosed to the public, causing bipartisan agitation on Capitol Hill.

The absence of specifics regarding the agreement, particularly its terms about Iran's nuclear program, has fueled demands from both parties for more details and a formal vote in Congress. Senator James Lankford emphasized, “If you want a deal to last, it can’t be an executive agreement. We’ve got to have a vote of Congress to be able to solidify it long term.”

The Trump administration has indicated that the memorandum of understanding will be made public by Friday. Preliminary reports suggest the agreement includes reopening the Strait of Hormuz for commercial shipping. However, the extent of Iran's commitment to dismantling its nuclear ambitions remains unclear. The White House has circulated talking points among Hill Republicans claiming, “Iran will never have a nuclear weapon” and forecasting a decline in energy prices.

The secrecy surrounding the deal has raised skepticism, with Senator Thom Tillis expressing concerns about the seriousness of a clandestine agreement. Comparisons are being drawn to the Obama-era Iran nuclear deal, which faced significant criticism for its approach to sanction relief and nuclear restrictions.

The legacy of the 2015 Iran deal controversy led to legislation requiring congressional review of any nuclear agreements with Iran, setting the stage for potential legislative intervention. Senators across the board are calling for an opportunity to review and vote on the agreement, although some predict administrative maneuvers to bypass this process.

Senate Majority Leader John Thune remains cautious, stating the need for more information and anticipating briefings by Vice President Vance or other officials.

What else we’re watching:

— DEMS NONCOMMITTAL ON SPEEDY CLAYTON CONFIRMATION: The Senate's pace in confirming Jay Clayton as director of national intelligence remains uncertain. Though Senate Republicans aim for a swift confirmation, opposition from any senator could delay the vote.

— THUNE AIMS FOR HOUSING BILL PASSAGE THIS WEEK: Efforts to pass a bipartisan housing affordability bill by week's end are underway, involving discussions between Senate Banking Chair Tim Scott, ranking member Elizabeth Warren, and coordination with the House and White House.

As tensions simmer over the Iran deal, Congress braces for a possibly contentious debate over national security and diplomatic strategy.