Barack Obama

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President Barack Obama salutes a Marines honor guard as he walks to a gathering of 2012-2013 NCAA Division I Men’s and Women’s championship teams from several sports on the South Lawn of the White House in Washington, Monday, March 10, 2014.(AP Photo/Manuel Balce Ceneta)

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President Barack Obama waves to members of 2012-2013 NCAA Division I Men’s and Women’s championship teams from several sports on the South Lawn of the White House in Washington, Monday, March 10, 2014. (AP Photo/Manuel Balce Ceneta)

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Athletes and officials representing various sports of the 2012-2013 NCAA Division I Men’s and Women’s Champions gather on the South Lawn of the White House in Washington, Monday, March 10, 2014 as they were honored by President Barack Obama. (AP Photo/Manuel Balce Ceneta)

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President Barack Obama points to teams in the crowd as he speaks to members of 2012-2013 NCAA Division I Men’s and Women’s championship teams from several sports on the South Lawn of the White House in Washington, Monday, March 10, 2014. (AP Photo/Jacquelyn Martin)

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** FILE ** In this Feb. 25, 2014, file photo, President Barack Obama speaks about manufacturing innovation institutes, in the East Room of the White House in Washington. (AP Photo/Jacquelyn Martin, File)