2018 Orange County Election Performance Project

Monitoring the Election


Project Final Report

We’ve wrapped up much of the work for this project. The final report is now available. Data and code will be archived in this Github repository as we make them available.

Election Integrity in 2018:  Orange County, California

Questions often arise after contested elections:  was the election conducted in a free and fair manner?  This was certainly the case in 2016, where many concerns were raised before, during, and after the presidential election --- in particular about the potential intervention in the 2016 U.S. presidential election by foreign governments or their agents. 

This research project will develop and implement a comprehensive ecological methodology to evaluate the conduct of the 2018 state and federal elections in Southern California, in partnership with the Orange County Registrar of Voters.  This process will include forensic analysis of the county’s voter registration database, statistical analyses of election data to detect potential problems or fraud, surveys of voters and poll workers to understand their experiences and evaluation of the election, and an independent audit of the audits that will be conducted by the Registrar’s office. 

Our project will evaluated the integrity of the 2018 elections in Orange County from top to bottom, in as near to real-time as possible. The results of these analyses are now in the 2018 June primary and 2018 November general election dashboards. We will publish a summary report on this project in June 2019.

Go to the 2018 dashboards:

June 2018 primary dashboard

November 2018 general election dashboard

Here’s the project’s final report!


Contact Us

You can email the project team at: