"MD-04" . "4th" . "CD4" . "Maryland's 3rd District" . "Maryland's Fourth District" . . . "Maryland 4" . "4th congressional district" . . "Fourth Congressional District" . . "Maryland - 4" . . "Maryland's 4th district" . "4th district" . . "Maryland's 4th congressional district" . . . . "MD 4th" . . . "Representative of the 4th Congressional District of Maryland" . . "fourth district" . "Maryland's 4th District" . "Maryland's fourth congressional district" . "Congress, District 4" . "District 4" . . "Maryland's 4th Congressional district" . . . "Maryland's 4th congressional district" . "Maryland's 4th" . "Representative of the Fourth Congressional District of Maryland" . . . "MD-4th" . . "Maryland 4th" . . . . . "fourth congressional district" . "Maryland 4th District" .