President Obama meets Saudi King Salman bin Abdul Aziz in Riyadh in January. The president is hosting King Salman at the White House Friday. Carolyn Kaster/AP hide caption

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The state-run Iran-Khodro plant manufactures vehicles including the Peugeot 206 car, shown on a production line in 2014 near Tehran. Iran's robust auto industry was built in response to sanctions. Ebrahim Noroozi/AP hide caption

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The U.N. Security Council endorsed the historic Iran nuclear deal on Monday. Now, world leaders — notably in the U.S. and Iran — must garner enough support for the agreement at home. Seth Wenig/AP hide caption

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Israeli Prime Minister Benjamin Netanyahu speaks during a press conference at his Jerusalem office on Tuesday. Oren Ben Hakoon/AP hide caption

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Prolonged nuclear talks gave Russian journalists time to play a game of giant chess Wednesday in a courtyard of the Beau-Rivage Palace Hotel in Lausanne, Switzerland. Brendan Smialowski/AP hide caption

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Ahead of Tuesday's deadline, Secretary of State John Kerry, Russian Foreign Minister Sergei Lavrov, German Foreign Minister Frank-Walter Steinmeier, French Foreign Minister Laurent Fabius and Chinese Foreign Minister Wang Yi wait Monday for the opening of a plenary session on Iran's nuclear program at the Beau-Rivage Palace Hotel in Lausanne, Switzerland. Fabrice Coffrini/AFP/Getty Images hide caption

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