Here we go on Due Process

Andrew Yang sues over New York's shutdown of presidential primary

The decision to remove Yang “denies voters due process and denies voters the right to vote, and therefore must be invalidated removing the authority for the Defendant to take the actions complained of herein,” reads the lawsuit, which was shared with POLITICO. The lawsuit notes that neither Yang nor the delegate candidates asked to be removed from the ballot.

Mr. Yang, the federal judges would be stupid to touch some part of an internal party issue.  But your point, Due Process is a tricky one and causes the federal judges to take notice, it gets you into the court.  Due process is the catch all, it implies the right to sue state organizations. The outcome is unpredictable.

Cuomo may have erred.  As the political leader he can shut down his own party primary, but he had no right to shut down the Repub side. I am not sure how this goes, and it looks like a Supremes make shit up moment.

Here we have corroborating evidence of Due Process violation

New York presidential primary cancellation sparks progressive fury

The decision to cancel New York’s Democratic presidential primary in June is sparking backlash from progressives, potentially threatening the party’s goal of unifying its voters ahead of the general election.
Progressives argue the vote from Democrats on the State Board of Elections deprives their wing of the party from voicing their preference ahead of the Democratic National Convention in August.
While Sen. Bernie Sanders (I-Vt.) suspended his campaign and endorsed former Vice President Joe Biden earlier this month, he plans to stay on the ballots in remaining contests in an effort to gather enough delegates to exert pressure on the party to adopt more progressive platforms at the convention.

We got ourselves a damn fine mess in NY.