Washington

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** FILE ** This April 17, 2014, file photo shows President Barack Obama speaking in the briefing room of the White House in Washington. (AP Photo/Carolyn Kaster, File)

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Ben Rhodes, deputy National Security Adviser for Strategic Communications and Speechwriting, right, accompanied by National Security Adviser Susan Rice, speaks about President Barack Obama's upcoming trip to Asia, Friday April 18, 2014 , at the White House briefing room in Washington. (AP Photo/Jacquelyn Martin)

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National Security Adviser Susan Rice, right, accompanied by Ben Rhodes, deputy National Security Adviser for Strategic Communications and Speechwriting, speaks about President Barack Obama's upcoming trip to Asia, Friday April 18, 2014 , at the White House briefing room in Washington. (AP Photo/Jacquelyn Martin)

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St. Louis Cardinals' Jhonny Peralta tosses his bat after striking out during the fifth inning of a baseball game against the Washington Nationals at Nationals Park, Friday, April 18, 2014, in Washington. (AP Photo/Alex Brandon)

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St. Louis Cardinals starting pitcher Michael Wacha throws during the third inning of a baseball game against the Washington Nationals at Nationals Park, Friday, April 18, 2014, in Washington. (AP Photo/Alex Brandon)

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A St. Louis Cardinals fan looks on during the first inning of a baseball game against the Washington Nationals at Nationals Park, Friday, April 18, 2014, in Washington. (AP Photo/Alex Brandon)

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St. Louis Cardinals starting pitcher Michael Wacha throws during the first inning of a baseball game against the St. Louis Cardinals at Nationals Park, Friday, April 18, 2014, in Washington. (AP Photo/Alex Brandon)

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From left, Malia Obama, President Barack Obama, and performers Jennifer Hudson, Victoria Justice, and Justin Bieber, stand on stage before singing "Hark! The Herald Angels Sing" at the annual Christmas in Washington taping at the National Building Museum in Washington, Sunday, Dec. 11, 2011. (AP Photo/Jacquelyn Martin)