What the typical/average amount of time between a vacancy (death or retirement announcement) and the nomination by the President?
What is the typical amount of time between nomination and approval (or rejection)?
How many have been nominated for Justice but failed to be confirmed by the senate?
The President probably has a plethora of contingency plans for unexpected events. There have been 112 Justices v. 44 Presidents. Statistically, a President will fill 2+ vacancies during his tenure. Does (or Why doesn’t) the President ever have one or two pre-vetted candidate names awaiting such a possiblity?
TV news is playing the Joe Biden 1992 speech in which Biden wants the Justice approval process delayed until the 1992 election. Had a justice been nominated and how did Biden vote on that issue?