Courting Tea Party voters in Philadelphia on Monday night, Mitt Romney speaks next to a large statue of Benjamin Franklin at the Franklin Institute. Tim Shaffer/Reuters/Landov hide caption

toggle caption Tim Shaffer/Reuters/Landov

Standard & Poor's downgrade of the U.S. credit rating Friday will play a role in President Obama's political future. Carolyn Kaster/AP hide caption

toggle caption Carolyn Kaster/AP

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