At the risk of seeming ridiculous

The US Constitution doesn't require a President's signature on a Declaration of War.  If you want to stop the Iran deal, declare war on Iran.

I know that Hussein won't honor it.  But what could he do to legally implement a deal with a country that we are at war with?  Indeed, grounds for impeachment could occur, even though the Dems will stop that in the Senate.

The basic idea is to gum up the works.  The deal cannot be allowed to have any appearance of legitimacy.  Nor any attempt to implement it.

When members of Congress claim that they cannot stop this deal, what about this?  Hmmmmmmmmmm???