On August 18, a new lawsuit was filed against the 2021 New York law that won’t let primary voters cast a write-in vote for someone who is not a member of that party. Frentzel v Mohr, w.d., 1:23cv-854.
A somewhat similar lawsuit had been filed earlier in state court, Kowal v Mohr. Although the trial state court struck down the law, the appellate state court reversed and upheld the law. Thanks to Joe Burns for this news. Here is the federal Complaint, which is assigned to U.S. District Court Judge John L. Sinatra.