In recent years, Arizona's status as a Republican stronghold has significantly weakened; since 2018, Democratic candidates have made substantial gains in the state's legislature, congressional delegation, and statewide executive offices.

[3][4] Blake Masters, former president of the Thiel Foundation and former chief operating officer of Thiel Capital,[5] was the Republican nominee after defeating Arizona Attorney General Mark Brnovich,[6] businessman Jim Lamon,[7] retired Air Force Major General Mick McGuire,[8] and Arizona Corporation Commission member Justin Olson.

Incumbent Republican governor Doug Ducey was term-limited by the Arizona Constitution in 2022 and unable to seek re-election.

News anchor Kari Lake defeated Arizona Board of Regents member Karrin Taylor Robson in the Republican primary.

In the Democratic primary, former Maricopa County recorder Adrian Fontes defeated state representative Reginald Bolding.

[19] Incumbent Republican attorney general Mark Brnovich was term-limited by the Arizona Constitution and unable to seek re-election.

[24] Incumbent Republican state treasurer Kimberly Yee originally announced her intentions to retire to run for governor.

Corporate finance officer Bob Lettieri[25][26] and state representative Jeff Weninger[27] unsuccessfully challenged Yee in the Republican primary.

[30] Republicans nominated Tom Horne, former superintendent and former Arizona Attorney General,[31] who defeated real estate manager Shiry Sapir,[32] and state representative Michelle Udall.

[35] Former Republican Mine Inspector Joe Hart was term-limited by the Arizona Constitution and unable to seek re-election.

Hart resigned on October 31, 2021, and was replaced by Paul Marsh, who was immediately eligible to run for a full term.

[60][61] On December 19, Maricopa County Superior Court Judge Peter Thompson dismissed eight of ten counts of Lake's lawsuit, regarding invalid signatures on mail-in ballots, incorrect certification, inadequate remedy, as well as violations of freedom of speech, equal protection, due process, the secrecy clause, and constitutional rights.

[79][81] Republican Arizona state senator Sonny Borrelli filed a lawsuit on December 12 to invalidate the results of the gubernatorial election won by Katie Hobbs.

[82] Unsuccessful Republican secretary of state candidate Mark Finchem filed a lawsuit on December 9 to have the election "nullified and redone".

[84] The lawsuit was dismissed with prejudice on December 16 by Maricopa County Superior Court judge Melissa Julian.

"[92] Finchem reacted to the sanctions by calling for Judge Julian to be "removed from the bench for her abuse of judicial authority".

[95] Republican candidate for attorney general, Abe Hamadeh, filed a lawsuit on November 22 in an attempt to be declared the winner, despite his opponent Kris Mayes having more votes at the time; Maricopa County Superior Court Judge Randall Warner dismissed the lawsuit without prejudice on November 29, ruling that it was premature because Arizona had yet to certify the election and declare election results.

[98] Mohave County Superior Court Judge Lee Jantzen noted that Hamadeh's lawsuit was different from others because Hamadeh "is not alleging political motives or fraud or personal agendas being pushed", but "is simply alleging misconduct by mistake, or omission by election officials, led to erroneous count of votes and which if true could have led to an uncertain result" of the election.

[99] Judge Jantzen on December 20 dismissed one count of the lawsuit alleging that Hamadeh's unverified early ballots were illegal votes.

[104] The results of an independent investigation into the 2022 election's printing problems was published in April 2023; the investigation was led by a retired chief justice of the Arizona Supreme Court, Ruth McGregor, who concluded that "the primary cause of the election day failures was equipment failure", and that no evidence gathered gave "clear indication that the problems should have been anticipated".