WASHINGTON — President Barack Obama secured a landmark foreign policy victory Wednesday as Senate Democrats amassed enough votes to ensure the Iran nuclear deal survives in Congress, despite ferocious opposition from Republicans and the government of Israel.
Democratic Sen. Barbara Mikulski of Maryland became the crucial 34th vote in favor of the agreement.
"No deal is perfect, especially one negotiated with the Iranian regime," Mikulski said in a statement. She called the accord "the best option available to block Iran from having a nuclear bomb. For these reasons, I will vote in favor of this deal."
The backing from Mikulski, who is retiring next year, gives supporters the margin they need to uphold an Obama veto of a congressional resolution of disapproval if Republicans pass such a measure later this month.
And it spells failure for opponents of the international agreement who sought to foil it by turning Congress against it. Leading that effort were Israel and its allies in the U.S., who failed to get traction after spending millions of dollars trying.
The agreement signed by Iran, the U.S. and five other world powers limits Iran's nuclear program in exchange for hundreds of billions of dollars in relief from international sanctions. Republicans and Israeli officials contend that concessions made to Iran could enable the country to wreak havoc throughout the Middle East.
Prime Minister Benjamin Netanyahu, who had personally lobbied U.S. lawmakers to block the nuclear pact, will continue fighting the agreement, an Israeli official said.
Marshall Wittmann, spokesman for the pro-Israel lobby AIPAC, said his group also would continue rallying opposition to the nuclear agreement.
In a letter delivered to Congress Wednesday, Secretary of State John Kerry called Israel's security "sacrosanct," recounting the billions of dollars the U.S. has provided the Jewish state for missile defense and other security assistance.
The letter was sent as Kerry defended the Iran deal in Philadelphia. His speech was carried live in Iran, an unusual occurrence.
With opposition to the agreement failing to take hold on the Democratic side, supporters may even be able to muster the 41 votes needed to block the disapproval resolution from passing in the first place, sparing Obama from having to use his veto pen. That would require seven of the 10 remaining undeclared senators to decide in favor of the deal.
Only two Democratic senators have come out against — Chuck Schumer of New York and Robert Menendez of New Jersey — while in recent weeks undeclared Democratic senators, even from Republican-leaning states, have broken in favor one after another.
Even if Congress passes the disapproval resolution, it can't stop the deal reached by Iran, the United States, Britain, France, Germany, Russia and China. It might help congressionally mandated sanctions remain in place. But the U.N. Security Council endorsed the nuclear deal unanimously in July and outlined how it would lift international sanctions on Iran.
Cory Fritz, a spokesman for House Speaker John Boehner, said, "the White House may have convinced just enough Democrats to back an agreement that legitimizes Iran's nuclear program." But the result, he said, "is no win for President Obama."
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AP Diplomatic Writer Matthew Lee in Philadelphia contributed to this report.