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Lawmakers in the dark on Iran deal as Trump says he will send it to Congress

Published by Global Banking & Finance Review

Posted on June 16, 2026

4 min read

· Last updated: June 16, 2026

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Lawmakers Seek Details as Trump Considers Sending Iran Nuclear Deal to Congress

By Patricia Zengerle

Congressional Review and Uncertainty Over Iran Nuclear Deal

Background of the U.S.-Iran Agreement

WASHINGTON, June 16 (Reuters) - President Donald Trump said on Tuesday he was willing to send his interim deal to end the war with Iran for review by the U.S. Congress, as lawmakers, including many of his fellow Republicans,  said they were largely in the dark about the pact.

The U.S.-Iran agreement, announced on Sunday, has spurred optimism that a conflict that has killed thousands and disrupted the global economy will soon end. 

According to officials from both countries, the memorandum of understanding would extend a tenuous ceasefire announced in April by another 60 days and reopen the Strait of Hormuz, a major shipping route effectively blocked since the U.S. and Israel began attacking Iran on February 28.

But the details remain unclear and the text of the pact has not been released or sent to Congress.

Trump's Stance and Iran's Nuclear Program

Trump also insisted on Tuesday that Iran would abandon its nuclear weapons program. Iran has long maintained that its nuclear program is for peaceful purposes.

Democrats have questioned Trump's latest promise of a peace deal. 

Democratic Response and Calls for Transparency

"We've been told dozens of times that the war is over and dozens of times we've been disappointed," Senate Democratic leader Chuck Schumer of New York said as he opened the Senate session on Tuesday.

"It's been two days since Trump claimed he had reached an 'understanding' with Iran and he still hasn't released any details... about what it actually is," Schumer said.

Schumer called on the Trump administration to hold a classified briefing for Congress' "Gang of Eight," a group of intelligence committee and congressional leaders typically briefed on major national security developments.

Schumer also said officials should brief the entire Congress, and inform the American people.

No plans for any such events have been released.

Presidential Comments and Legal Considerations

Trump's Remarks on Congressional Review

'I LIKE THE IDEA'

Trump told reporters in France that he had not thought about sending the memorandum of understanding with Iran to Congress for review but that he would do it. "I like the idea," he said during his meeting with ​Mohamed ⁠bin Zayed Al Nahyan, the president of the United Arab Emirates, on the sidelines of the G7. 

Trump said he wanted to wait until after a formal signing ceremony expected on Friday.

Legal Obligations Under the Iran Nuclear Agreement Review Act

Trump could be legally obligated to involve Congress. Under the Iran Nuclear Agreement Review Act, a 2015 U.S. law passed as Democratic President Barack Obama's administration finalized an Iran nuclear agreement, any such agreement must be submitted to Congress for review before sanctions can be eased.

That review leaves open the possibility that lawmakers could try to block parts of the deal. 

Congressional Dynamics and Reactions

Republican and Democratic Positions

Some Republican lawmakers have been willing to break with the president, voting with Democrats, unsuccessfully, to force Trump to seek congressional approval for the Iran war.  Under the U.S. Constitution, Congress, not the president, has the power to declare war.

But most Republicans, who hold slim majorities in both the Senate and House of Representatives, have shown little appetite during Trump's second term for challenging his foreign policy.

Requests for Information from the Administration

Senator John Thune's Comments

Senator John Thune of South Dakota, the Senate's Republican leader, told reporters at the Capitol on Tuesday that party members were pressing Trump to provide the text of the MOU.

"We're trying to get it," he said, acknowledging that it is unusual for an administration not to share information about such a major development with its own party.

"Since I've been in this job, we haven't had this issue," Thune said.

Other Republican Responses

Other Republicans joined Democrats in expressing frustration at the lack of information.

"If it's a secret deal, then how can I take it seriously?" Republican Senator Thom Tillis of North Carolina told reporters on Monday evening.

(Reporting by Patricia Zengerle; Additional reporting by David Morgan; Editing by Don Durfee and Sanjeev Miglani)

Key Takeaways

  • Trump agreed Sunday’s interim deal with Iran extends a 60‑day ceasefire and would reopen the Strait of Hormuz, yet the memorandum’s text remains unpublished and undisclosed to Congress and even GOP lawmakers (axios.com).
  • Legal experts note that under the Iran Nuclear Agreement Review Act, any nuclear‑related agreement must be submitted to Congress; Trump now says he’s willing to send it, though he had not initially planned to (investing.com).
  • Capitol Hill reaction is mixed: Senate GOP Leader John Thune says Republicans are demanding access to the deal text, while Democratic Leader Chuck Schumer demands briefings for both the Gang of Eight and the full Congress, citing past disappointments (apnews.com).

References

Frequently Asked Questions

What is the current status of the U.S.-Iran agreement?
The deal was announced with optimism for ending the conflict, but details remain unclear and the text has not yet been released or sent to Congress.
Has President Trump sent the Iran deal to Congress?
Trump said he is open to sending the memorandum of understanding to Congress for review, but has not yet done so as of the article's publication.
Why are lawmakers frustrated about the Iran deal?
Both Republican and Democratic lawmakers express frustration over a lack of information and transparency regarding the deal's details.
What is the significance of the Strait of Hormuz in the agreement?
The agreement reportedly includes reopening the Strait of Hormuz, a major shipping route blocked since late February, which is crucial for global trade.
Is Congress legally required to review the Iran deal?
Under the Iran Nuclear Agreement Review Act, any such agreement must be submitted to Congress for review before sanctions are eased.

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