2018 Arizona elections


A general election was held in the U.S. state of Arizona on November 6, 2018. All of Arizona's executive offices were up for election as well as a United States Senate seat and all of Arizona's nine seats in the United States House of Representatives. The Republican Party won the majority of statewide offices while the Democratic Party picked up three statewide offices.

U.S. Senate

Incumbent Republican Jeff Flake was eligible to run for re-election to a second term. As a strong critic of President Donald Trump and remaining unpopular in the state, Flake announced in October 2017 that he would not seek reelection.
President Trump and Republicans backed Martha McSally to succeed Flake. Kelli Ward, former state senator and candidate for the U.S. Senate in 2016 also ran for the Republican nomination for the open seat.

Results

On the evening of Monday, November 12, 2018, McSally posted on her Twitter that she had spoken with Sinema and conceded. Sinema celebrated with supporters later that evening.

U.S. House of Representatives

February special election

A special election was held in Arizona's 8th congressional district following the resignation of Congressman Trent Franks. Republican nominee and former Arizona Senate president pro tem Debbie Lesko won a closer-than-expected race against Democratic challenger Hiral Tipirneni.

Governor

Incumbent Republican governor Doug Ducey won re-election to a second term.

Secretary of state

Incumbent Republican secretary of state Michele Reagan lost the nomination for a second term to Steve Gaynor, who lost the general election to Democratic state senator Katie Hobbs.

Attorney general

Incumbent Republican attorney general Mark Brnovich won re-election to a second term.

Republican primary

Candidates

Declared

Democratic primary

Candidates

Libertarian primary

Candidates

Declared
  • Michael Kielsky

State treasurer

Incumbent Republican state treasurer Jeff DeWit announced on April 6, 2016, that he would not run for re-election to a second term as state treasurer. Republican Kimberly Yee won the general election.

Superintendent of Public Instruction

Incumbent Republican Superintendent of Public Instruction Diane Douglas ran for re-election to a second term and lost to Frank Riggs in a close five-way primary. Riggs lost to Democratic teacher Kathy Hoffman in the general election.

Republican primary

Candidates

Democratic primary

Candidates

Declared

Mine Inspector

Incumbent Republican Mine Inspector Joe Hart won re-election to a fourth term.

Republican primary

Candidates

Declared

Democratic primary

Candidates

Declared
  • William Pierce, engineer

Libertarian primary

Candidates

Declared
  • Kim Ruff

Corporation Commission

"Corporation Commissioners must only satisfy the standard requirements for all Arizona state officers, who must be at least 18 years old, a citizen of the United States and able to speak English." Two of the seats on the Arizona Corporation Commission are up for election, elected by plurality block voting.

Republican primary

Candidates

Declared

Democratic primary

Candidates

Declared

Supreme Court

Two justices on the Arizona Supreme Court were up for retention in 2018.

Justice Bolick retention

Clint Bolick was appointed by Governor Doug Ducey in 2016 to succeed retiring justice Rebecca White Berch.

Justice Pelander retention

John Pelander was appointed by Governor Jan Brewer in 2009 to succeed retiring justice Ruth McGregor. He was retained by the voters in 2012.

State Legislature

All 30 members of the Arizona State Senate and all 60 members of the Arizona House of Representatives were up for election. Democrats flipped four state house districts.

State ballot measures

Arizona had five statewide propositions on the ballot in 2018.