On March 6, two New York Times reporters who cover politics, Shane Goldmacher and Adam Nagourney, wrote “One clear loser in California’s primary: the top-two nonpartisan primary system. They say, “It was sold on good government reform, meant to drain partisanship and promote centrist politicians. Instead, it showed itself – again – to be as vulnerable as traditional primaries to partisan gamesmanship.” See this link, although it may be behind a paywall. It is at the end of the column, the title of which is “Five Takeaways from Super Tuesday.”