On early Saturday morning, September 16, the Senate concurred in the Assembly amendments to SB 568, the bill that moves all primaries from June to March. The bill now goes to Governor Jerry Brown, who has until October 15 to sign or veto it.
The final votes were: September 16 vote in the Senate, 26-10. September 15 vote in the Assembly, 55-21.
The only other time that a midterm California primary was earlier than June was 2002, when it was in early March. The 2002 California primary had the lowest turnout of any California primary in history, up until that point. Only 34.6% of the registered voters cast a ballot. The 2002 primary was a semi-closed primary.
Afterwards, though, California midterm primary declined even more. It was only 25.2% in 2014, the first and only midterm year under the top-two system.