Hours after Netanyahu's speech, Senate Minority Leader Mitch McConnell announced that the Senate will take up legislation next week that would subject any Iran nuclear deal to congressional approval, despite a presidential veto threat. The bill, sponsored by Senate Foreign Relations Committee Chairman Bob Corker, R-Tenn., would give Congress 60 days to approve, disapprove, or take no action on an eventual deal with Iran, which is expected in the next three weeks. The bill would also require Obama to assess whether Iran is complying with the deal every 90 days and report to Congress.
"I think everyone in America should want the House and the Senate to weigh in on this most important agreement that may be reached, and I'm glad we're going to have the opportunity to do so," Corker told reporters Tuesday.
The legislation was co-sponsored by five Democrats, including Foreign Relations Ranking Member Robert Menendez, D-N.J., and Sen. Tim Kaine, D-Va., a White House ally who also sits on the committee. Independent Sen. Angus King of Maine, who caucuses with Democrats, also signed on to the bill. But the White House issued a veto threat for the bill just a day later.
Senate Majority Leader Harry Reid, D-Nev., wouldn't say Tuesday whether his caucus would allow the Senate to move forward with Corker's legislation, arguing that he would like to see a deal—if there is one—first.
The Corker bill does not include any additional sanctions on Iran. Menendez had worked with Sen. Mark Kirk, R-Ill., on sanctions legislation earlier this year, but held off on bringing it to the floor at the request of the administration, while the negotiations with Iran continue. However, McConnell said, he will bring the Corker bill to the floor under an open amendment process, meaning that members could ultimately attach the sanctions legislation as well.
After Netanyahu's speech Tuesday, Corker said the prime minister's speech "crystallized a lot of thinking." "I can't imagine anyone who runs the United States Senate wouldn't want to look at the deal."
Rep. Steve Israel, D-N.Y., said that Netanyahu was "justified" in coming to Congress, but House Speaker John Boehner wasn't in the way that he got the prime minister here. In January, Boehner invited Netanyahu to address Congress without consulting the Obama administration, a move that congressional Democrats saw as an attack on the president.
Secretary of State John Kerry, speaking to reporters in Geneva on Monday, had indirectly warned Netanyahu against sharing sensitive information about the ongoing negotiations during his speech. Israel said that Netanyahu didn't cross any lines in his remarks, and "knows better" than that.
"I was skeptical about this deal going in," Israel said. "I'm just as skeptical going out."
Sen. Ben Cardin, D-Md., said that Netanyahu "made a very effective case about the dangers of Iran."
"The worst outcome is a bad agreement and I think it's a little too premature to judge an agreement because we haven't completed negotiations, but I thought he made a very effective point about how we should evaluate an agreement with Iran."
Marina Koren and Sarah Mimms contributed to this article