- Arizona AG Mark Brnovich announced that he is seeking the Republican nomination for U.S. Senate in 2022, to challenge incumbent Senator Mark Kelly (D).
- AG Brnovich is entering a crowded GOP primary, which already includes Retired Maj. Gen. Mick McGuire and solar-business executive Jim Lamon, among others.
- Senator Kelly has held the seat since 2020, when he won against former Sen. Martha McSally (R) to fill the remainder of the term initially won by the late Sen. John McCain (R).