The Senate bill would require a competed deal to be submitted to Congress.
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The Senate voted overwhelmingly Thursday to approve legislation allowing Congress to review a nuclear deal with Iran in a 98-1 vote.

Sen. Tom Cotton (R-Ark.) was the only senator to oppose the bill. He said in a statement that he objected that the deal was not to be presented to the Congress as a treaty.

“A nuclear-arms agreement with any adversary—especially the terror-sponsoring, Islamist Iranian regime—should be submitted as a treaty and obtain a two-thirds majority vote in the Senate as required by the Constitution,” he said.