U.S. Sen. Marco Rubio, a Florida Republican who has long been critical of the White House’s negotiating strategy over Iran’s nuclear capabilities, reacted to the announced deal by saying it "undermines our national security."
Rubio, also a candidate for the GOP presidential nomination, is a member of the Senate Foreign Relations Committee.
"President Obama has consistently negotiated from a position of weakness, giving concession after concession to a regime that has American blood on its hands, holds Americans hostage, and has consistently violated every agreement it ever signed," he said in a statement Tuesday.
He added: "I expect that a significant majority in Congress will share my skepticism of this agreement and vote it down. Failure by the president to obtain congressional support will tell the Iranians and the world that this is Barack Obama's deal, not an agreement with lasting support from the United States. It will then be left to the next president to return us to a position of American strength and re-impose sanctions on this despicable regime until it is truly willing to abandon its nuclear ambitions and is no longer a threat to international security."