President Barack Obama shakes hands with attendees of the University of Notre Dame's 164th commencement, May 17, 2009. (Official White House Photo by Pete Souza.

This free, public domain photograph may not be used in materials, advertisements, products, or promotions that in any way suggest approval or endorsement of the President of the United States, the First Family, the White House or any persons appearing in the photos.

This free, public domain photograph may not be used in materials, advertisements, products, or promotions that in any way suggest approval or endorsement of the President of the United States, the First Family, the White House or any persons appearing in the photos. Stock photography by White House Public Domain.

Copyright: United States Government Works

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