Andrew Gumbel, an author, journalist, and former foreign correspondent in many countries, has this op-ed in the Los Angeles Times. He argues that California’s top-two system isn’t working well and should be changed.
Read about Gumbel here.

UPDATE: also, CalMatters, an on-line publication about California politics and government, has a very detailed analysis by Ben Christopher of the 2018 races in which Democrats may be left with no candidate on the November ballot, even in districts carried in November 2016 by Hillary Clinton.

FURTHER UPDATE: this piece by Mike Feinstein in Fox & Hounds makes some points that other articles on this subject have not made.

On May 18, the New York state ban on out-of-state circulators was declared unconstitutional. Here is the 25-page decision in Free Libertarian Party v Spano, e.d. 1:16cv-3054. The case was originally called Merced v Spano and had been filed in 2016.

The state tried to argue that the ban on out-of-state circulators was not severe, because the Libertarian Party had successfully petitioned in New York many times in the past. But the decision says, “The Supreme Court has refused to overlook an unconstitutional restriction upon some First Amendment activity simply because it leaves other First Amendment activity unimpaired.” That quote was from California Democratic Party v Jones, the 2000 decision that struck down California’s blanket primary.

The decision is by Magistrate Judge Steven M. Gold, a Clinton appointee. One of the plaintiffs was Bill Redpath, a Virginia resident who frequently acts as a volunteer petitioner for Libertarian Party candidates in many states.

On May 17, a Montana state trial court took testimony in the lawsuit on whether the Green Party had enough valid signatures on its March 2018 petition. See this story. The trial has not finished and will start again on May 24.