leave mr. rosenstein's involvement outside the scope of -- or outside the bounds of his investigation, that might protect rosenstein in his role and allow him to stay on board overseeing the investigation overall? >> its difficult to see he'll never contact mr. rosenstein. i think what deputy attorney general rosenstein is waiting to see is what precisely is the line of questioning he'll face, how deeply drawn in, and what role in the investigation and it may be othat basis he'll decide if he's required to recuse himself. if the role is minor, that might be one thing. it may be on that basis that he decides whether he's required to recuse himself. if the role is minor that may be one thing. it's not clear how exactly he's going to apply the recusal standards in this case. >> we're all learning about the order of succession. they are now political figures in terms of their political leanings and what people think about them in the legal profession.