President Barack Obama and first lady Michelle Obama smile as they walk to be greeted by Former President George H.W. Bush as they arrive on Air Force One at George Bush Intercontinental Airport, ... more 
President Barack Obama and first lady Michelle Obama smile as they walk to be greeted by Former President George H.W. Bush as they arrive on Air Force One at George Bush Intercontinental Airport, Wednesday, April 9, 2014, in Houston. (AP Photo/Carolyn Kaster) less 
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Associated Press | Photo By Carolyn Kaster
Wed, Apr 9, 2014 5:51 PM EDT