Martha McSally is an American politician and retired United States Air Force officer. She served as a U.S. Senator from Arizona from 2019 to 2020, after being appointed to fill the vacancy left by Jon Kyl. McSally was the first woman to fly in combat for the U.S. military and has a distinguished military career. Before her time in the Senate, McSally represented Arizona's 2nd congressional district in the U.S. House of Representatives from 2015 to 2019. She is a member of the Republican Party and has focused on issues such as national security, veterans' affairs, and border security during her political career.