attempting to set a perjury trap.
You pubes should be thrilled that he answered "I don't know" probably a half dozen times to Howdy Gowdy's questions about "what is the crime of collusion".
Yes, Howdy Gowdy even asked Comey: "Do you recall Rod Rosenstein's memo appointing special counsel"?
Hello Dumphuck Howdy Gowdy - that memo was written AFTER Comey was fired, how would Comey know?
https://www.lawfareblog.com/document-transcript-james-comeys-dec-7-interview-house-committees