WASHINGTON (AP) -- In a rare show of unity, President Barack Obama and challenger Mitt Romney took turns praising Washington Redskins rookie quarterback Robert Griffin III a couple of weeks ago for a video that aired on the Fox network's NFL pregame show. They uttered polished, rote lines such as Romney's ''RG3 hasn't been in Washington very long, but he's already created change'' and Obama's ''You're welcome at my house for a pickup game anytime.''

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