FILE - In this April 18, 2015 file photo, Sen. Lindsey Graham, R-S.C., speaks in Nashua, N.H. Senate proponents of a bill empowering Congress to review and potentially reject any Iran nuclear deal must first win a battle with some colleagues determined to change the legislation in ways that could sink it. "Anybody who monkeys with this bill is going to run into a buzz saw," Republican Sen. Lindsey Graham of South Carolina warned ahead of last week's debate and this week's vote. (AP Photo/Jim Cole, File)
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