Sen. Campbell Hospitalized

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Colorado Senator Ben Nighthorse Campbell was examined in a Washington hospital on Thursday after experiencing mild chest pains. But he was released after doctors determined his ailment was not serious.

A cardiologist says the senator was discharged after a diagnosis of acid reflux and a spasm of the esophagus.

The 70-year-old Campbell has faced questions about his health since last year when he acknowledged undergoing treatments for prostate cancer. He's seeking re-election to a third term.