Elections for 20 of 40 seats in the California State Senate will take place on November 8, 2022. State senatorial primary elections will be held on June 7, 2022. Democrats hold a 31-9 majority heading into the election.
This article details the five most expensive contested primary elections in the State Senate.
This information comes from candidate reports to the California Secretary of State covering the period of January 1, 2021, through May 21, 2022.