The Power of Incumbency

With President Barack Obama currently in the process of filling vacancies in his cabinet—already one current United States Senator has gotten the nod—and with the retirement of Senators Rockefeller, Harkin, and Chambliss, there has been a good amount of chatter about the ramifications of opening up a U.S. Senate seat. While every state is a unique case, we started wondering what the actual numerical advantage is when it comes to incumbency.

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