question. this letter clearly vout lines that view and we're just getting through it, as you pointed out, but it is to say that whatever reason -- you cannot subpoena him because he does not need to testify about something that could not be criminal. they're essentially saying that the president cannot obstruct justice by firing jim comey or firing michael flynn or asking jeff sessions to recuse or whatever the litany of things they may be looking into. it an interesting and aggressive tact by trump's legal team and we see how it plays out. >> it's an old letter. it's going back months now. it's not contemporaneous of where we are now. i think context is key and bringing up rudy giuliani and what he's said recently, i want to get a sense what kind of upper hand rudy giuliani and his team has.