By year's end in 2007, White House hopeful Mitt Romney, R-Mass., had spent $53.6 million on his campaign, according to the Center for Responsive Politics. Romney, a high-profile former governor and businessman, has the name and contacts to finance an expensive campaign for the White House. So how do other candidates keep up (like former Sen. Mike Gravel, an Alaskan who has been out of public office for 25 years)?
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