Sen. Marco Rubio said Monday, July 20, will go down in history as President Obama's "Capitulation Day," as it marked the day that the United Nations Security Council voted to lift international sanctions on Iran in returning for limits on its nuclear program, and when embassies were opened in Washington and Havana.

"History will remember July 20, 2015, as Obama's Capitulation Monday, the day two sworn enemies of the United States were able to outmaneuver President Obama to secure historic concessions," the Florida Republican said in a statement.

Events at the United Nations, Washington and Havana, he said, are proof that "we have entered the most dangerous phase of the Obama presidency." He accused Obama of "flat-out abandoning America's vital national security interests to cozy up to the world's most reprehensible regimes."

The U.N. Security Council vote took place Monday morning, U.S. time, in Brussels. The Obama administration moved forward with the vote despite sharp bipartisan resistance in Congress. The top Republican and Democrat on the Senate Foreign Relations Committee, Sen. Bob Corker, R-Tenn., and Sen. Ben Cardin, D-Md., have urged the administration not to move forward with the vote, arguing that it undercuts Congress and the Senate's Constitutional mandate to review all international treaties.

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