Customers look on as Republican presidential candidate, former Massachusetts Gov. Mitt Romney arrives for a stop at Wawa gas station in Quakertown, Pa., Saturday, June 16, 2012. (AP Photo/Evan Vucci)

Associated Press
Customers look on as Republican presidential candidate, former Massachusetts Gov. Mitt Romney arrives for a stop at Wawa gas station  in Quakertown, Pa., Saturday, June 16, 2012.  (AP Photo/Evan Vucci)
Customers look on as Republican presidential candidate, former Massachusetts Gov. Mitt Romney arrives for a stop at Wawa gas station in Quakertown, Pa., Saturday, June 16, 2012. (AP Photo/Evan Vucci)
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