Rep. Seth Moulton, D-Mass., tore into the emerging U.S.-Iran framework Saturday as "basically a surrender document," telling MS NOW that President Donald Trump's planned Sunday signing trades $100 billion in war spending and 14 American dead for the reopening of a strait that closed only after the U.S. struck Iran.

Trump announced the signing Saturday on Truth Social, billing the framework as "A WALL TO NO NUCLEAR WEAPON" and writing that "The Deal is scheduled to get signed tomorrow, and immediately after it is signed, the Hormuz Strait is OPEN TO ALL."

He said Iran agreed not to acquire a nuclear weapon "either through purchase, development, or any other form of procurement," vowed "no money will exchange hands," and pledged U.S. forces would later retrieve and "downblend and destroy" the "Nuclear Dust" buried in Iran's hardened sites.

Moulton, a Marine combat veteran on the House Armed Services Committee, was unsparing on MS NOW.

"This is a terrible deal," he told host Alex Witt. "It's basically a surrender document from Donald Trump to the supreme leader of Iran."

He laid out the price: "$100 billion of taxpayer money already put into this war, 14 Americans dead, and we get a deal that just reopens a strait that was already open before he started this stupid war."

Pressed on whether final terms would constrain Iran more than the prewar status quo, Moulton said no.

The framework "certainly won't be as tough as President Obama had with the Iran nuclear deal that Donald Trump tore up," he said, arguing Trump scrapped the 2015 pact "because of his vanity" and left Iran "much closer to a bomb than they ever were under President Obama."

He pointed to reports that roughly $24 billion in frozen Iranian assets would be released to launch nuclear talks, against the $1.7 billion freed under the Joint Comprehensive Plan of Action that Trump and his allies once branded treasonous.

"I mean this is really pathetic," Moulton said, calling the outcome "lose, lose, lose across the board" before conceding "stopping this war and getting out of it is the best that we can do at this point."

Moulton also accused Tehran of stringing the president along.

"It really sounds like Donald Trump wants a deal," he said.

"It sounds like the Iranians are pretty content dragging out negotiations because guess what? They have a stranglehold on the world economy by closing the strait," he said.

Moulton's critique sharpens a Democratic line that has hardened as the war stretched into a fourth month.

The House voted 215-208 on June 3 to direct Trump to end hostilities under the War Powers Resolution, with four Republicans joining every Democrat.

House Foreign Affairs ranking member Gregory Meeks, D-N.Y., who sponsored the measure, argued the war proceeded "without clear objectives, an exit strategy, public support, or the authorization required by the United States Congress."

Hawkish Senate Republicans, including Armed Services Chairman Roger Wicker, R-Miss., and Sen. Lindsey Graham, R-S.C., have separately warned that the reported terms give Tehran too much, though from opposite directions.

As of Saturday, Washington and Islamabad say the signing is set for Sunday; Tehran says it is not.