The announcement from the Governor’s Office Tuesday sets up a unique dynamic in which Arizona will be represented in the Senate by former foes.

McSally and Democrat Kyrsten Sinema will serve alongside each other after facing off in one of the most contentious and expensive Senate races in Arizona’s history.

In a statement, Ducey praised McSally’s dedication to serving her country, referencing her 26 years of service in the U.S. Air Force and her multiple deployments to the Middle East and Afghanistan. He also praised McSally for representing Arizona in Congress for the past four years.