UPDATE | Former coal executive Don Blankenship files to run for president

Former coal executive and ex-prisoner Don Blankenship has officially filed to run for president.

According to the Federal Election Commission's website, Blankenship is running for the Constitution Party's nomination.

Former coal executive and ex-federal prisoner Don Blankenship says he'll seek the Constitution Party's presidential nomination next year, the Associated Press reports.

West Virginia Constitution Party chairman Jeffrey-Frank Jarrell says Blankenship made the announcement Saturday during the party's national committee meeting in Pittsburgh.

Blankenship finished third in the 2018 Republican primary for a U.S. Senate seat held by West Virginia Democrat Joe Manchin. Blankenship's general election bid to run as the Constitution Party's nominee was then blocked. The secretary of state cited the state's "sore loser" law prohibiting major-party primary candidates who lose from switching to a minor party.

Blankenship is the ex-CEO of Massey Energy, which owned a West Virginia mine where a 2010 explosion killed 29 workers. He

for misdemeanor safety violations related to the explosion.