State: Ohio
Age: 46
Claims to fame: He unsuccessfully challenged Nancy Pelosi for the House Democratic leadership post in 2016 and promises to unite the party's working-class and progressive wings to beat President Donald Trump.
Biggest weaknesses: He has low name identification and faces dim hopes of winning as one of three current representatives who could be the first sitting House member to get elected president since James Garfield in 1881.
Miami moment: He attacked Trump for failing to stop General Motors Co. from laying off or removing 4,000 workers from its Lordstown, Ohio, factory.
Candidate visits to Michigan: May 4 in Grand Rapids
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