December 28, 2011 6:11 PM

Ron Paul's rivals give him a free pass in Iowa ads

He could easily win the Iowa precinct caucuses next Tuesday, which kick off the voting for the 2012 Republican presidential nomination. Yet Ron Paul is largely getting a free pass from his rivals and their supporters, the only top-tier candidate who's escaping the torrent of high-profile attack ads flooding the state's airwaves.

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