If POTUS could do it then, he can do it now.
Judge Napolitano: Trump ‘Can Appoint Kavanaugh in 10 Minutes’ Via Recess Appointment Power
Sep 24th, 2018
Andrew Napolitano stated on Fox Business Network today that President Donald Trump could confirm his SCOTUS nominee almost instantly if he uses “recess appointment power.”
“Tell you what Donald Trump can do if this fails — he has recess appointment power. If Mitch McConnell recesses the Senate for 10 minutes he can put Brett Kavanaugh on the Supreme Court for four years without Senate confirmation,” Napolitano said. “I don’t know that Brett Kavanaugh wants to do this. This is real hard ball. He’d have to give up his present lifetime seat in order to do it. The president has that power.”
https://www.mediaite.com/tv/judge-napolitano-trump-can-appoint-kavanaugh-in-10-minutes-via-recess-appointment-power/