Senate approval for Iran nuke treaty?

Does the President need 2/3rds of the Senate, or a majority of both houses of Congress, to approve a nuclear treaty with Iran?



Could the President approve a treaty without any Congressional authorization, but only Congress can undo Congressionally-approved sanctions?



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How many international treaties have been approved without any Congressional authorization?



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via International Skeptics Forum http://ift.tt/1ypcx4E