didn't interview hillary clinton before writing the exoneration letter is when you have an investigation by time you get to the interview you know all the facts. you you just try to lay a perjury trap. that's what they're trying to do. >> bill: rudy giuliani said we'll challenge the subpoena and take it to the supreme court and is he right about that? >> they have very strong legal arguments. a combination of legal arguments. the perjury trap, executive privilege, beyond the scope of the investigation. all of those together give them a lot of legal ammunition and give them some leverage. so they are in a bargaining position now where perhaps they can get a very limited interview for a couple of hours with questions laid out in advance. >> bill: hang on one second. breaking news not on this matter. other stuff. hang on here. >> sandra: this just in from the white house. an announcement about this upcoming summit with north