It might open an investigation into other places.

It depends on who did the cheating and how prolific it is in other states and counties.

The point is that it all needs to be looked at and reverified

I will point out that if they did it in a state they weren't going to win and that would be too suspicious for them to actually win in the first place, why wouldn't they replicate it in a state they actually needed and on which his election actually hinged? Just means New York was a control/test case

Frankly after election there are two things that bugged me in California. There was a proposition that removed mandatory work requirement for inmates comparing it to a modern day slavery. There was no one who was willing to endorse vote against it (I suppose due to optics) yet the proposition failed.

When he visited CA after fires were already put down and made that spectacle with water dam, he also mentioned that he had a good feeling about next election.

I have a feeling that maybe CA voting is also compromised and this was a test for California, as trump winning here would be extremely suspicious, but no one will care about this proposition.