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  • Presidential Campaign Buses

    Rick Santorum didn't have the same resources as other candidates in Iowa. He traveled in a two-minivan caravan throughout the state. And he was happy with a fourth-place finish at the Ames Republican straw poll.
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  • Presidential Campaign Buses

    Republican presidential candidate Herman Cain's campaign bus.
    Matthew Jaffe/ABC News
  • Presidential Campaign Buses

    Texas Rep. Ron Paul has no tour bus of his own, but some of his supporters turned a yellow school bus into their own mode of transportation to the Iowa Republican Straw Poll in Ames.
    Matthew Jaffe/ABC News
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