>> Threats to our national security.>> On the one year anniversary of Special Counsel Robert Mueller's probe into Russian meddling, President Trump called the investigation disgusting, and congratulated America saying we are now into the second year of the greatest witch hunt in American history. But those sarcastic good wishes Thursday come on the heels of a striking development in the probe.
>> The same reason they can't indict him constitutionally->> Which Mueller agreed today. He's gonna abide by no indictment of the President.>> Right.>> Reuters legal columnist Allison Frankel is on the story.>> Giuliani argues, as an overarching defense for the President, that the president can not be indicted, and says that he has received assurances from special prosecutor Mueller that Mueller plans to follow Justice Department guidelines, which state that the president can not be indicted.
There are differences of opinion about whether that policy would hold up were it challenged in court, but right now that is the Justice Department policy.>> Giuliani, who joined the President's legal team in April, has said Trump doesn't have to comply with the possible subpoena from Mueller that would force him to testify, but legal experts are not so sure.
>> I talked to eight lawyers about it today, all of them said that there was absolutely no basis in the law for this theory, and they used really strong language, language that you do not hear from lawyers very often. One lawyer told me that the theory is drivel, and a prosecutor who worked on the Ken Starr Whitewater case said that Giuliani's theory was delusional.
>> The President has denied colluding with Russia. So far as part of the investigation, 19 people have been charged, four of whom were Trump aides. Mueller’s team has not commented about the latest indictment developments, so this all comes from Giuliani, who has recently misstated information pertaining to the investigation, which then led to a presidential walk back.
>> He started yesterday. He’ll get his facts straight.