House Majority Leader Kevin McCarthy
House Majority Leader Kevin McCarthy Reuters

The American House of Representatives will vote next week on the Iran nuclear deal, Republican leadership said Wednesday, the first congressional step in a process President Barack Obama hopes will uphold the accord, AFP reported.

"Next week the House will consider a resolution of disapproval of the Iran nuclear deal," House Majority Leader Kevin McCarthy said in a statement quoted by the news agency.

"This vote will have an immense impact on our national security as well as the security of our friends and partners around the world," he added.

The vote had been expected in September, but the timing was not previously known.

With most U.S. lawmakers opposed to the accord, which aims to severely restrict Iran's nuclear program in exchange for an easing of punishing economic sanctions, the resolution of disapproval is certain to pass the House.

"With a clear majority of Congress and the American people lining up in opposition to this deal, the House will not approve this deal. This is a bad deal for our country and for our allies," McCarthy said.

Action would then shift to the Senate. Should the resolution pass both chambers, Obama will veto it, setting up votes in Congress to override his veto.

Such an override would require a two-thirds vote in both chambers.

However, earlier on Wednesday Obama secured the necessary number of votes in Congress to ensure the passage of the Iran nuclear deal, when Democratic Senator Barbara Mikulski of Maryland became the 34th senator to declare her support.

Her announcement came just one day after Senators Chris Coons (D-DE) and Bob Casey (D-PA) similarly declared their support, providing the White House with 33 out of the 34 votes it would need to maintain a presidential veto.

McCarthy last month expressed his confidence that the nuclear deal with Iran will not be approved by Congress.

“Knowing what I know about the agreement,” he said during a visit to Israel, “at the end of the day, it'll be disapproved.”

McCarthy rejected the argument that the lifting of sanctions on Iran is already a done deal because of the other countries involved. “If the agreement did not go through,” he argued, “you still have the American sanctions. Countries would be in a position then to have to make a decision, do they choose to deal with the Iranian economy or the size of the American economy? I would assume more would side on the American side of the economy.”