Investigators raided the home of a prominent Maryland black Democrat for the second time in three weeks Tuesday. State prosecutors searched Baltimore Mayor Sheila Dixon's house for several hours in the morning, apparently continuing a two-year probe of her financial dealings as City Council president. The investigators removed documents from Mrs. Dixon's Southwest Baltimore home, but would not confirm the focus of the investigation. Federal prosecutors, meanwhile, expanded their investigation into state Sen. Ulysses Currie this week, requesting records from the Maryland Department of Transportation and the Maryland Motor Vehicle Administration, both of which own land near a mall in...