Free media helping to define presidential race

Republican presidential candidates from left facing camera, former Utah Gov. Jon Huntsman, Rep. Michele Bachmann, R-Minn., Texas Gov. Rick Perry, businessman Herman Cain, former Massachusetts Gov. Mitt Romney, Rep. Ron Paul, R-Texas, former House Speaker Newt Gingrich and former Pennsylvania Sen. Rick Santorum participate in a presidential debate at Dartmouth College in Hanover, N.H., Tuesday, Oct. 11, 2011. (AP Photo/Toni Sandys, Pool)

December 10, 2011 8:21:51 AM PST
From late-night comedy shows to cable news interviews, free media exposure has proved influential in defining the Republican presidential candidates and setting the dynamics of the primary race, especially for lower-tier hopefuls lacking cash for TV ads.

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