Arizona Gov. Jan Brewer set June 12 as the special election to replace Democratic Rep. Gabrielle Giffords. Giffords, who was shot in the head at a constituent meet-and-greet last January, announced this week that she was stepping down from her post to concentrate on her recovery. Arizona will hold a primary for prospective Republican and Democratic candidates on Apr. 17. A handful of Democrats are considering running for the House seat, which includes parts of Tucson. One Republican has already announced a formal campaign, while two have formed exploratory committees.