Last updated: Sep 19, 2024

Arizona

Memos

In 2020, Arizona was one of the most contested states during the presidential campaign and election, which Joe Biden carried by just 10,457 votes, or 0.3% of votes cast. The state is once again expected to serve as an electoral battleground in 2024. This label entails a higher level of election scrutiny by statewide political parties, voting rights organizations, advocates, and the campaigns themselves. 

This report will review historical election and voter registration trends in Arizona, election administration performance in the 2024 Presidential Preference Election (PPE), potential controversies and challenges for the 2024 General Election, and post-election issues that may arise. 

A topic of particular interest is the role of election audits in recent Arizona elections. The state gained national attention in 2020 and 2021 when the state legislature initiated what they termed a “forensic audit” of Maricopa County’s election administration and ballot tabulation. Judicial and legislative action in the state has altered the ability of state and local officials to conduct hand counts and audits, and this report will detail these changes. The role of skepticism about the outcomes of the 2020 election in Arizona cannot be understated, and its influence on state officials, elections offices, and the general public will continue into the 2024 general election and its aftermath.

Memo / August 27, 2024
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State Resources

Office of the Secretary of State

Data Visualizations

Voter Registration

Last updated: September 19, 2024

 A plot of the number of registered voters in Arizona, separating voters into three categories: Democrats, Republicans, and all other registered voters. The number of each of these groups is compared between similar time points in 2020 and 2024. The number of Democrats has fallen from about 1.3 million in August 2020 to less than 1.2 million in August 2024. The number of Republicans has risen slightly, from just under to just over 1.4 million. The number of other registered voters has jumped from about 1.3 million to about 1.4 million.

A plot of the number of registered voters in Arizona, separating voters into three categories: Democrats, Republicans, and all other registered voters. The number of each of these groups is compared between similar time points in 2020 and 2024. The number of Democrats has fallen from about 1.3 million in August 2020 to less than 1.2 million in August 2024. The number of Republicans has risen slightly, from just under to just over 1.4 million. The number of other registered voters has jumped from about 1.3 million to about 1.4 million.