2. Did Sessions try to run interference for Comey with Trump? While Comey did not run to tell Sessions of his concerns over what the President supposedly said about the investigation of Michael Flynn, Comey did say he asked Sessions to shield him from Mr. Trump, worried by the President's phone calls and questions. Did Sessions remember that? Did he do anything after being asked by Comey? Does Sessions have a different recollection of what had been discussed?
3. Should Sessions have been involved in Comey's firing? This gets at the issue of the Sessions recusal from the Russia investigation writ large. Some Democrats say that recusal should have also applied to the Comey firing - since President Trump has made clear he fired Comey in part because of the Russia probe. "If, as the president said, I was fired because of the Russia investigation, why was the Attorney General involved in that chain?" Comey asked last week. He said he didn't have an answer. Democrats seem likely to hammer on this point.