can i ask you quickly about kristen davis, who is known as the manhattan madam and the fact she's been subpoenaed now by mueller's team. what would they be looking for with this woman who has long ties with roger cohen -- roger stone. >> another excellent question. i don't think we have enough information to know for sure what's behind that attempt to interview miss davis. she does have a lot of long-standing ties to roger stone, who was a key player in the campaign. roger stone had a hot of contacts with russian agents during the campaign and wikileaks. perhaps they want to know did he mention anything to her about that. or it might be something different. obviously they are after something mr. stone might have said to her that would indicate some sort of admission or knowledge. how far it goes, i don't think