Maryland Sen. Ben Cardin files to run for re-election to a third term in the U.S. Senate at the Maryland State Board of Elections in Annapolis, Md., on Monday, Feb. 5, 2018. (AP Photo/Brian Witte)
Featured Photo Galleries
Maryland Sen. Ben Cardin files to run for re-election to a third term in the U.S. Senate at the Maryland State Board of Elections in Annapolis, Md., on Monday, Feb. 5, 2018. (AP Photo/Brian Witte)
