Forgot to add, part of the process is a 46 page FBI memo, with only one copy available for 100 senators to see in a day or two.
And the FBI investigation was limited to 9 interviews (and one declined), and was curtailed in both time and scope.
So a lot of rushing on the part of the GOP, along with hiding Kav documents.
And part of this process is that filibusters were eliminated, so that no longer were 60 members needed to move to a vote.