facts are. >> barbara, do you view this as a potentially interesting thing for them to use? and is the road map here as important if we don't know what mueller finds? in other words, if you find stuff about the president there's a lot more reason to get congress involved. if you don't you have the normal charging function to deal with anyone other than the president that you believe was chargeable? >> i believe because this whole area is so unprecedented, there's not case law to look to figure out how you do these kinds of things any information you have will certainly be useful to robert mueller. certainly there are going to be facts unique to nixon investigation or howard investigation that are not pertinent here. but the process they used and this procedure, as jill described, using the inherent authority of the grand jury and the court do order that information get turned over to congress, just those kind of things i think can be very