On March 13, the New York Green and Libertarian Parties cert petition with the U.S. Supreme Court. Libertarian Party of New York v New York State Board of Elections. There is no case number yet. The brief concerns the 2020 ballot access changes in New York. The legislature tripled the statewide petition for independent candidates and the nominees of unqualified parties, from 15,000 to 45,000 signatures. The legislature did not expand the petitioning period, which lasts six weeks in April and May.
The legislature also changed the definition of a party from a group that polled 50,000 votes for Governor, to one that polled 2% for the office at the top of the ballot, every two years (president/governor).
UPDATE: Here is the Appendix for the cert petition.