Speaking of Democrats in 1960.
S.RES. 334. EXPRESSING THE SENSE OF THE SENATE THAT THE PRES. SHOULD NOT MAKE RECESS APPOINTMENTS TO THE SUPREME COURT, EXCEPT TO PREVENT OR END A BREAKDOWN IN THE ADMINISTRATION OF THE COURTâS BUSINESS. KEATING MOTION TO RECOMMIT TO JUDICARY COMM.
https://www.govtrack.us/congress/votes/86-1960/s415
Precedents matter...