"You'll Find Out"

Several media outlets on Friday confirmed what has been suspected in Washington and foreign capitals for some time: that Trump will not certify the 2015 international nuclear deal with Iran, on the grounds it does not serve US security interests.
  Guardian

Thus putting the United States in a little world of its own.

Business leaders who gathered for an Iran-Europe forum in Switzerland this week said they were prepared to do everything possible to salvage the deal in the event of a US withdrawal.

A senior executive at a European multinational company, who asked to remain anonymous, said he expected the US president to de-certify the deal but he believed that would not amount to the end of the agreement.

[...]

That would trigger a period of 60 days in which it would be up to a delicately balanced Congress whether to reimpose sanctions. A decision to do so could trigger a collapse of the deal and a return to a tense standoff in the Middle East over the Iranian nuclear programme.

Expecting Congress to save our asses is probably not realistic. Or, is it?

“The Iranian regime supports terrorism and exports violence and chaos across the Middle East,” Trump said at a White House meeting of US military leaders.

“That is why we must put an end to Iran’s continued aggression and nuclear ambitions,” he added. “You will be hearing about Iran very shortly.”

The statement was made as he sat alongside senior security officials, the most senior of whom have said repeatedly that Iran is abiding by the 2015 nuclear agreement.

Did they just smile and try to appease him at dinner? Did they humor him to his face and then proceed to go behind his back to Congress in a panic? Did they say, "Do what you want, you will anyway"?  As the dotard says: You'll find out.

An expert on the North Korean weapons programme, Jeffrey Lewis of the Middlebury Institute of International Studies, expressed alarm that Trump’s warning of a coming storm could have been interpreted by America’s adversaries in ways the president never considered.

“This is the kind of idle threat that, made at the wrong time, could trigger an unexpected escalation on the Korean peninsula,” Lewis tweeted. “Please stop.”

That's one thing, you can be certain, he will not do.

...but hey, do what you want...you will anyway.