This report provides an assessment of the performance of all 50 states + DC in the 2018 U.S. midterm elections, compared with the 2016 contest. It applies the expert survey methods used since 2012 by the Electoral Integrity Project to measure and compare the quality of contests around the world.
Norris, Pippa, Holly Ann Garnett, and Max Grömping. "Electoral Integrity in the 2018 American Elections." May 2019.