Democrat Rep. Ron Barber and his Republican opponent Martha McSally are still waiting to see who will represent southeastern Arizona’s 2nd Congressional District.
Unofficial returns show a narrow lead for Barber, former district director for Democratic Rep. Gabrielle Giffords. Barber was critically injured in the January 2011 shooting that killed six and wounded Giffords and others.
After Giffords resigned to focus on her recovery, Barber won a special election in June to fill the seat.
Barber benefited from endorsements by Giffords and her husband, retired astronaut Mark Kelly.
McSally is a retired Air Force colonel and pilot.
The redrawn 2nd Congressional District covers much of Tucson as well as Green Valley and Cochise County.