A breeze of momentum on his side, President Barack Obama is moving to shore up support in a key state while he and rival Mitt Romney spar over how to transform a bitterly divided political culture and how to best ensure the financial and health security of older Americans.
Obama is traveling Saturday to Wisconsin, a state that his campaign had considered safely in his column but which Obama aides seem eager to fortify in case Romney's running mate, Wisconsin native and congressman Paul Ryan, can erode the president's support.
Romney, faced with second-guessing within his own party over his strategy, is staying away from swing states Saturday and raising money in California. On Sunday, he's set to campaign in Colorado, where polls show Obama holds a narrow lead.
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