Official come out here on the drive over to the white house last night, in the dark, to tell to make this announcement that he had accepted this invitation. Now, as far as the details of where we go from here, theyre still hammering those out, the when, the where. But south korea is saying this meeting will take place by may. Very short timetable that the white house is working with here. Thats a timetable that the white house has agreed to. But we do not know when and where this meeting will happen. But to give you a sense of how quickly all of this unfolded, we heard from Vice President mike pence just on tuesday and he said that the posture toward the north korean regime will not change until, quote, we see concrete steps toward denuclearization. Then we heard from the secretary of state Rex Tillerson just yesterday, hours before this invitation was accepted, and he said that, quote, were a long way from negotiations. And then the president accepts this invitation, that was extended by north korea and were going from here. But, john, a lot of risk, a lot of reward at the table here, essentially between the two leaders. Both very dramatic, both very bold, but the president has made clear he doesnt want to make the mistakes that his predecessors have with north korea. So well be waiting to see where the president goes from here as the white house continues to hammer out the details of this very striking news, john. The stakes could not be higher. Kaitlan collins at the white house this morning. This morning, no country could be happier about all of this than south korea. Cnns Paula Hancocks in seoul with the latest. Reporter well, john, youre right. We have heard from the south korean Vice President moon jaein who even before he came to power said that he wanted this to happen. He wanted more engagement with north korea. He has everything he wanted and more. He has said this is almost a miraculous event. That really sums up what has happened over recent days. The fact that this diplomat ic whirlwind is a massive understatement. Were hearing interesting color and information from the meeting between the north Korean Leader kim jongun and the south korean officials, if we rewind a few days before the south korean officials went to washington with that historic invitation to meet with trump. We did hear that the red carpet was laid out by the north Korean Leader, that he applied the south koreans with bottles of wine, with korean soji, the local liquor here and it was very jovial, saying he was also very jovial when he was talking about his image outside of north korea, saying he was very aware of how he was portrayed in International Media and how people thought of him. He was even joking about himself. So we really saw some quite interesting insights into kim jongun himself. But there are many people here welcoming this, many insisting a bit of realism needs to be injected into it as well. We know xi jinping, the chinese leader, has been speaking to the u. S. President , donald trump, certainly china will be delighted. This is what they have wanted for some time. They have wanted washington and pyongyang to sit down and discuss the denuclearization. But we are hearing some people question whether or not the u. S. President is walking into a massive trap, to actually sit down with the north Korean Leader, legitimizes him in a way that some say it really shouldnt. Paula hancocks in seoul. Thank you very much. Joining me now, john park, director of the Korea Working Group at Harvard Kennedy school of government and tony blinken, former deputy secretary of state. There is a Glass Half Full aspect to this and glass half empty. Lets start with Glass Half Full. I know this did not go down the way that major diplomatic breakthroughs normally do. Nevertheless, this is diplomacy. This is a meeting where people will be talking, not shooting, at each other. Youre right. Look, a few weeks ago before the olympics, it looked like we were in a slow motion nightmare heading to conflict and war. Now the president is giving diplomacy a chance. Thats a good thing. We should support it and applaud it. Second, i think it is evidence that pressure can work. The administration built on the pressure that president obama put in place and thats one of the reasons i think kim is coming to the table. But where the realism comes in is this, were at best at the start line, not the finish line of a process and there are world class hurdles ahead. We know that president kim jongun could actually just simply take the meeting, pocket it and get increased stature hes looking for. And the North Koreans are masters at three things. Stringing, ringing and walking. Stringing out talks, ringing out concessions and walking away. Thats a danger too. Finally this needs extraordinary preparation. And if the president goes into this, without the preparation, if he wings it, and goes in alone, thats a recipe for ending up in a very bad place. John park, to you, kim jongun is getting something he wants here. Is he giving anything up . Hes committed to denuclearization. May meeting is right around the corner. For the time being, it is this commitment to denuclearize and freeze on the Ballistic Missile and nuclear test. Not even a piece of paper. A statement we think he said out loud as translates through the south koreans now. We dont know how firm that is. Mike pence, we heard his statement. He said this is evidence that President Trumps strategy to isolate the kim regime is working. The North Koreans are coming to the table despite the United States making zero concessions. True . The current formulation, thats what it looks like. Were still trying to piece together what took place. I think more information will come out. But the thing is, there are two dominant theories why kim jongun is going this direction, sanctions are working, clear indication this game plan is coming to fruition in key areas. The other, hes biding time, the idea that for the next stage of Nuclear Weapons development, ever more technically intensive, he was going to be quiet and working in the labs and soldering, why not frame it as a freeze of a diplomatic off ramp. Why has every north Korean Leader wanted this high profile meeting with the u. S. President . It is an important element of validation of the north korean structure itself and north korea views the United States as the source of what they call the hostile policy. So, tony, some of what north korea might want out of this, cnn particularly listing from our reporting, sovereignty, dramatic reduction of u. S. Troops in south korea, scale down the u. S. south Korean Military exercises, how much of this, if any of it, when all is said and done, would be the u. S. Be willing to give . We have been here before. I think north koreas aims in any negotiation have been pretty consistent. And you just listed them. At the end of the day, what theyre looking for, is to get u. S. Troops off the peninsula, to end the u. S. south Korea Alliance and ultimately from their perspective reunify but on their terms. All of those things are nonstarters. But where there may be an opportunity is to see if we can give them at the end of a process if they take the steps to denuclearize credible guarantees for their own security and survival. Thats where the rub is. We have to keep this in mind. When we engage in these kind of negotiations before, for example, with iran, on its Nuclear Program or cuba on diplomatic normalization, it has taken years, tremendous preparation, taken a very detailed and lengthy process, taken the right people and experts. None of those are in place. So i think we got a long road ahead of us to even get to that point. Finally this is the time when the hypocrisy leader in washington hits the red. Interesting to see people criticize president obama, what is their reaction to this. What standard are they going to hold President Trump to if he gets into a negotiation with north korea. I am interested, i know the situation was different with the Obama Administration than it is nowle with the Trump Administration, but if you were part of the National Security council, sitting inside the west wing on a thursday, they say the north wants to meet, would you say, yes, lets do it in may . I dont think we would have been as impulsive as the president was yesterday. I think we have taken this under advisement, thought about the right reaction, probably would have started by proposing that someone under the president meet, but, look, at the end of the day, john, you know, diplomacy is not a gift, it is a tool. And if it can be used to advance peace to advance our security and get to a deal, then we should support it. So lets see where this goes. I would support the president in moving forward on this. But with the right people, with the right preparation, with the right process to give us a chance to get to yes. John, it is interesting, no small irony this happened hours after the United States announced big sanctions against south korea here. The steel sanctions could cost south korea a lot of money. There are major exporter of steel to the United States. Do you think at this point the United States backs off that and says, hey, wait a minute, well take this off the table, all this north korea stuff is going on, it is unseemly and unwieldy . As i mentioned, different piece of information coming out, one from yesterday that the south korean National Security adviser put in a request in terms of the exemption under the steel tariffs for south korea. Thats being considered at this point. Do you think it would be wise for the Trump Administration to say yes given the sensitivity of the negotiations now . It depends. There is a south korean effort to link the two issues, even from a south korean perspective, the priority is to get the interkorean talk and the u. S. And north korean talks going. Great to have you with us. Thanks so much, guys. A lot going on. Still to come, the Stormy Daniels saga, yet another adult film star is now tied to this scandal. We have new details ahead. The former Trump Campaign aide who made the rounds on tv this week, he is now testifying before a grand jury inside u. S. District court. What is he saying . And former president barack obama in talks to partner up with netflix. Stranger things have happened. See what we did there . My digestive system used to make me feel sluggish. But those days are over. Now, i take metamucil every day. It works naturally to trap and remove the waste that weighs me down. So i feel. Lighter. 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Guess where he is right now . There he is, walking into the District Court in washington, d. C. , we believe him to be testifying before the grand jury as we speak. Jessica schneider outside right now. Jessica, give us the latest. Reporter well, john, as you saw there, in a week that started off with a show of defiance from sam nunberg, he has in fact come here to the District Courthouse and he will he is appearing before a grand jury this morning. He walked into the courthouse, just shortly after 9 00 a. M. He walked in with his attorney, patrick brakly. But everything that happens before the grand jury will be done without his attorney present and will be done in secret. So the question is, what exactly will sam nunberg tell this grand jury . He did appear for an interview with the special council last month. He spent five and a half hours with investigators, telling them what he knew. But, of course, sam nunberg was very outspoken, earlier this week. He said a number of things that he didnt actually provide any evidence for, but he did say that he believes that President Trump knew about that june 2016 meeting at trump tower between donald trump jr. And Jared Kushner and Paul Manafort and that russian lawyer. He also said based on his Interview Questions from the special council, he said he believes that the special Counsel Robert Mueller does in fact have something on President Trump. Of course, again not offering any evidence. So interesting what sam nunberg will tell the grand jury today and how long he might be before the grand jury. Now, it is important to gain some perspective here. Sam nunberg was really a shortlived Campaign Adviser to the trump team, very early on in the campaign. In fact, he was hired by the campaign. And then fired, rehired again, and then finally fired in august 2015. Of course, that was just two months after donald trump even declared his candidacy. So, what exactly sam nunberg knows from those few months, it is uncertain. But what we do know is earlier this week, the special counsels team served a subpoena on sam nunberg asking for documentation and correspondence between nunberg and ten people including the president. Roger stone, steve bannon, Paul Manafort, rick gates among others. All communications from november 2015. That was after sam nunberg left the campaign until the present. So, john, it will be curious to see if sam nunberg talks to the cameras after he comes out of the grand jury proceedings. Again, up clear how long that will last. He did not talk to the cameras going into the courthouse. And he did tell our Gloria Borger last night, he said, i wont be commenting any more. I dont want to turn into anthony scaramucci, a dig on the president s shortlived communications director, anthony scaramucci. So despite sam nunberg talking extensively, john, at the beginning of the week, hes not saying anything today at least. John . Not to us. He is saying things to the grand jury, which ultimately is more important. Jessica schneider, thank you very much. That is one headache for the white house. There is a new one that has emerged very much this week. It is the Stormy Daniels saga. Stephanie clifford and her lawsuit. She is a former adult film actress, her lawsuit against the president. Our sara sidner joins us now with more. Sara . Reporter there are some new details cnn uncovered. One of the people listed in that nondisclosure agreement, and in that agreement there are several people listed who may have knowledge of this alleged relationship between Stormy Daniel