Conversation so far:
What were their earlier years like?
Cornette held several positions in the WWF.
Did he tag team with anyone?
WWE credits Cornette with helping foster numerous successful superstars including John Cena.
Did he win any titles with John Cena?
helping foster numerous successful superstars including John Cena.

Question: Who was his most successful tag team partner?
Self-contained rewrite: Who was Jim Cornette's most successful tag team partner?