the key ones are, laura? >> yeah, absolutely, kate. another huge day on capitol hill. this time, attorney general jeff sessions in the hot seat, and there are five key questions we think he's likely to face. first and foremost, why exactly did the president of the united states fire james comey, and what was sessions' role in that firing? you will remember, sessions sent a letter to the president on may 9th, actually recommending comey's firing based on the fact that he had flouted doj protocols. but then the president changed the story of it and said that the russia investigation was on his mind. so, senators are going to want to know exactly how does this wear with sessions' recusal, since he's not supposed to know anything about the russia investigation? the next thing is that comey says that trump left him -- that sessions left trump alone in the room in the oval office, so we have to know, and senators are going to want to know, exactly what was sessions' thinking about this? why did he leave the room when there are strict protocols about what exactly the white house and