Well, that is true, but does he have the votes to stop the nomination from taking a seat????
He has 48 dem votes, so yes, Schimer can block a vote if the standard is still 60 to pass.
If McConnell goes nuclear (50+ to nominate), then no, Schumer doesn’t.
I really don’t think McCain or Graham will block a conservative. They’ll try to get something for themselves in voting ‘Aye”, but they wouldn’t straight-out block it.
Trump is a deal maker. I’m sure he’d listen to them and see what he could do.