This changes nothing at all. The deal will still be signed by 0bama or stamped with his Imperial Seal and then the Senate will decide - as they would have in any case - whether or not to lift the sanctions but the rest of the world will have lifted the sanctions while the Senate is pretending to be relevant and 0bama would be returned the billions that Iran needs to pay for more terrorism.
Our next president will never be able to "Snapback" the sanctions and everyone knows that.
Powers of the President:
The President shall be Commander in Chief of the Army and Navy of the United States, and of the Militia of the several States,
He shall have Power, by and with the Advice and Consent of the Senate, to make Treaties, provided two thirds of the Senators present concur.
I don't see that the Constitutions gives the president to power to make international agreement without the consent of the Senate.
The obstacles are welded into place in our Constitution.It is not good to put up obstacles to the President's foreign policy initiatives simply for the sake of political gain.
0bama has also violated other Powers of the Congress:
2: To borrow Money on the credit of the United States; Holding the nation hostage; 0bama forced the Congress to barrow trillions of dollars and his treasury is still printing money to make it look like things are great.
3: To regulate Commerce with foreign Nations, and among the several States, and with the Indian Tribes;
4: To establish an uniform Rule of Naturalization, and uniform Laws on the subject of Bankruptcies throughout the United States; The EPA is regulating commerce the way 0bama wants and he is ignoring immigration laws that our founders was important enough to put in the hand of the people's representatives.