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US President Barack Obama holds a copy of the Iran nuclear agreement presented to him by House Minority Leader Nancy Pelosi (D-CA) during the House Democratic Issues Conference January 28, 2016 in Baltimore, Maryland. / AFP / Brendan Smialowski (Photo credit should read BRENDAN SMIALOWSKI/AFP via Getty Images)

US President Barack Obama holds a copy of the Iran nuclear agreement presented to him by House Minority Leader Nancy Pelosi (D-CA) during the House Democratic Issues Conference January 28, 2016 in Baltimore, Maryland. / AFP / Brendan Smialowski        (Photo credit should read BRENDAN SMIALOWSKI/AFP via Getty Images)