Sandra Day O'Connor was appointed in 1969 to fill a vacancy created when State Senator Isabel Burgess left for a federal appointment. O'Connor was sworn in on October 30, 1969. She then won election and re‑election, serving until January 1975. She became Majority Leader in 1973, making her the first woman in the United States to lead a state senate majority caucus.
Sandra Day O'Connor was appointed in 1969 to fill a vacancy created when State Senator Isabel Burgess left for a federal appointment. O'Connor was sworn in on October 30, 1969. She then won election and re‑election, serving until January 1975. She became Majority Leader in 1973, making her the first woman in the United States to lead a state senate majority caucus.