Cruz was on the case. He remembers but he tried to deny it.
He’s a liar.
I have not read anywhere that he denied being on the case; only that he was not the pus-bag’s lawyer.
Saying “he was my lawyer” implies a much closer association than does “he was on of the staff lawyers on my case”.
Boehner was trying to claim the close association, Cruz was denying it. At the Core, Boehner is lying, Cruz is not.
Remember - Boehner’s story depends on eager dupes to gain traction. Only the dupest of dupes could be a Boehner dupe.