Former Rep. Dennis Kucinich (D-Ohio) is throwing his hat into the ring for Ohio governor, joining six other Democrats vying for the seat.

Kucinich officially filed paperwork declaring his candidacy on Monday, according to the Springfield News-Sun.

BREAKING: @Dennis_Kucinich files designation of treasurer form to run for Ohio governor #OHGov pic.twitter.com/mB5IiTZy4P — Jeremy Pelzer (@jpelzer) January 8, 2018

Kucinich, who was mayor of Cleveland and then served eight terms in Congress, is perhaps best known for his two failed presidential runs in 2004 and 2008.

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The 71-year-old Democrat will be running against six other prominent figures in the primary, including former Attorney General Richard Cordray Richard Adams CordrayConsumer bureau revokes payday lending restrictions Supreme Court ruling could unleash new legal challenges to consumer bureau Supreme Court rules consumer bureau director can be fired at will MORE and Ohio Supreme Court Justice Bill O’Neill, to fill the seat that will be left vacant by term-limited Gov. John Kasich (R).

While in Congress, Kucinich served as the chair of the Congressional Progressive Caucus. His 2008 presidential platform highlighted liberal policies including legalizing medical marijuana, ending the war on drugs and creating universal single-payer health care. He is also a longtime vegan.

Kucinich is an outspoken critic of U.S. intervention in Iraq and introduced articles of impeachment against former President George W. Bush.