It takes 60% of the senate to seat a SCOTUS judge. The question is, will the R's block a nutcase leftist? They'll almost have to seat a moderate or a mild leftist, but what if someone like Harris or Hillary, or maybe Michelle, got the nomination? Would the R's block that?
Nope. People got this wrong with Kavanaugh and Coney.
60 for cloture.
Simple majority to confirm.