What types of primary elections has California tried?

What will be an ideal response?

The state used a closed primary system until 1996. In that system, only voters who declared their party affiliation prior to the election could participate in the own party's election. At the voting station, a voter would receive a Republican or Democratic ballot with their own party candidates' names listed for each office. Independents could not participate. Voters then approved Prop 98 in 1996, a blanket primary that allowed all registered voters to vote for any candidate. All candidates' names appeared on the ballot for every office. It was ruled unconstitutional, and the state reverted to a modified closed primary system, whereby voters in a party participated in their own party's primary, and independents (now called "no party preference voters") had their votes counted if a party authorized it. In June 2010, state voters approved the Top-Two candidate version of the open primary (Prop 14). Under the new rules, all voters are allowed to choose from among a list of candidates, and the top two vote-getters compete against each other to win the November general election. Potentially, the top two candidates will be from the same party in some districts.