TV stations are already compelled to keep records about the campaign ads they air in public files. The FCC's chairman says it's time to make that information available on the Internet. But the stations are resisting.
President Obama visited Iowa City this week as part of a three-state tour. As it was four years ago, Iowa will be an important state in the general election, which is expected to be a matchup between Obama and Republican Mitt Romney. Here's a look at ground operations for both candidates.
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