On September 22, Washington state officials said they will ask the U.S. Supreme Court to reverse the 9th circuit’s decision that outlawed the “top-two” primary. The 9th circuit had ruled on August 23, and had said that since Washington state prints party labels on ballots, therefore the state must honor a party’s right to nominate its own candidates without members of other parties participating. If the U.S. Supreme Court won’t take the case, the Grange will circulate a new initiative, making all elections in the state (except presidential elections) non-partisan.
If the US Supreme Court refuses to hear the state’s appeal, the Grange will push a new initiative providing for ballots with no party labels.
The “top two” is a nonpartisan system– whether party labels are put on the ballot or not.
Louisiana puts party labels on the ballot in its “top two” system.
In the “top two,” parties are, of course, free to hold caucuses/conventions to ENDORSE candidates. (Or this can be done by the party’s central committee, as sometimes occurs in Louisiana.)