Don Blankenship, the former CEO of coal firm Massey Energy who went to prison, has filed to run as a Republican candidate for the Senate in West Virginia.

Blankenship recently spent a year in jail after a federal grand jury indicted him three years ago for conspiracy to violate federal mine safety rules as well as securities fraud. A lack of safety at one of his largest mines in West Virginia resulted in the deaths of more than two dozen miners.

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