Politics | John Murtha Democrats Retain Murtha Seat in Congress Mark Critz defeats Republican Tim Burns in Pennsylvania By Newser Editors and Wire Services Posted May 18, 2010 10:05 PM CDT Copied Mark Critz talks with reporters after he voted in Johnstown, Pa., Tuesday. (AP Photo/Keith Srakocic) Democrats will retain control of the seat held for decades by the late Pennsylvania Rep. John Murtha after winning a special election to fill the final months of his term. Both parties viewed the contest as a test for the fall. Murtha aide Mark Critz defeated businessman Tim Burns. The two will have a rematch in the November general election after also winning their respective primaries. Read These Next A Cape Cod car theft didn't go as planned. Leno says people are shocked that he's doing the right thing. After bill defeat, House GOP warns members against skipping votes. 'Hypertechnical' ruling could put Khalil back behind bars. Report an error