Interesting. According to wiki the vote to convict must be 2/3rds. The “court” consists of the Senate minus the Majority Leader plus 7 judges he appointed. That’s 69 total, so 2/3rd would be 46. If we assume all Rs will vote in favor, he needs to hold 27 of the remining 49 or 55%, which seems unlikely at this point but not impossible.
If I was a R senator in NYS I’d vote not to convict. Let the Dems deal with him.