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Graham: Race For President Turning Into NASCAR

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AP Photo / Carolyn Kaster

Graham said that all a campaign really needs is one major donor.

"Basically, if you can get an ideologically aligned rich person who believes in you ... and they want to be a player in politics, you can keep a campaign going as long as the guy's willing to write checks," he said. "Which changes everything."

The super PAC "West Main Street Values Fund" has formed to back Graham's re-election in 2014.