I think nominations would proceed as normal. Did X42 fill any vacancies while he was being impeached?
No, his nominations were 1993 and 1994 (Ginsburg then Breyer), and the impeachment nonsense was in 1998. (Impeached for lying to investigators... gee, sound familiar? The petulant Left wants to exact the same punishment on the Right... and for all the substantive reasons to impeach Bill, they chose a stupid process crime. Dumb... and Trump is paying the price now.)