In this Jan. 16, 2015, file photo, Maryland Gov. Martin O'Malley speaks with reporters during a roundtable interview at the Maryland State House in Annapolis, Md. O'Malley plans to announce his presidential intentions on May 30 in Baltimore, a move that could present another Democratic challenger to Hillary Rodham Clinton. The former Maryland governor will hold a conference call with top supporters on Thursday, May 14, to discuss his plans for the announcement in his adopted hometown, where he served as mayor, an O'Malley aide said (AP Photo/Patrick Semansky, File)
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