We need to send a clear message this is not all talk and smoke in mirrors, but serious about getting this information. Mr. Trump is making it clear that obstruction is his middle name. Good morning to you. Happy saturday. Take a nice, deep breath. Made it to the weekend. I know. Im christi paul. Im Martin Savidge in for victor blackwell. So good to have you. There is no deal between the u. S. And china. Thousands of items are going to be more expensive after trade talks broke down. Matt rivers is at one of the main shipping ports in china. Reporter Consumer Products could be more expensive. China is going to retaliate. We will tell you how and why. That might hurt the economy. 20 Million People are currently under a Flash Flood Watch as Severe Weather pounds parts of the south. Allison is tracking it. A foot of rain has fallen over texas. How much more is expected to fall, coming up. A California Teacher battling Breast Cancer is forced to pay for a substitute teacher while she is out of work. Dan simon is following growing outrage there. Its going to take california lawmakers and the Teachers Union to come up with a fix for what everyone acknowledges is ridiculous. We begin, hours after Rudy Giuliani said he was going to ukraine to push for an investigation into joe biden, giuliani now says hes not going to go. I will get out of it. In order to remove political suggestion, i will step back and i will watch it unfold. The news of the canceled trip came after President Trump told politico he planned to talk to giuliani about that trip. Giuliani said he wanted to convince ukrainian leaders to look into former Vice President bidens calls to remove a top prosecutor in 2016. Biden was joined by other World Leaders in making that call. Opponents said the prosecutor had been investigating a Ukrainian Gas Company connected to bidens son. It was dropped after the prosecutor was removed. Speaking of joe biden, the president seems to think he knows who his 2020 opponent is going to be. He sees parallels to his own dominance in the 2016 primary. Joining us live from the white house is jeremy diamond. Sounds like a growing bromance there, jeremy. Reporter right. As far as the xecomments to kee the door open to investigate his 2020 rival, joe biden, the president saying he is keeping the door open to investigating the former Vice President. Saying, certainly, it would be appropriate for him to speak about, but i have not done that as of yet. It could be a very big situation, the president said. Again, we have to point out how remarkable it is the president is talking about the possibility of investigating his former political opponent. We know the president wanted to prosecute his former 2016 rival, Hillary Clinton. That was revealed in the Mueller Report and the president raised the issue with Top Justice Department officials in terms of prosecutoring Hillary Clinton. Certainly nothing new as far as the president pushing the bounds and looking into these various issues, this coming as the president is making clear joe biden could be his potential rival in the 2020 general election, comparing, indeed, his run in 2016 to that of the former Vice President this early in the race. Those issues coming together this morning in remarkable fashion. Martin . Before you go, is the white house not concerned about that imagery that, of course, they wanted dirt on Hillary Clinton and now seem to be wanting the same thing on joe biden . Reporter seems to be part of the reason why the former new york city mayor, Rudy Giuliani is no longer going on this trip. Those were some remarkable optics we saw developing as the, as, you know, this was being reported out. The idea the president s personal attorney would go to a foreign country to suggest they investigate a potential rival. Certainly, the white house decided to step back. Again, the president is keeping the door open to discussing the issue with the attorney general, bill barr. Well keep an eye on that. Speaking of the white house, its a battle they are fighting as Congressional Democrats battle for the tax returns. House ways and means issued a subpoena for President Trumps financial records increasing pressure on the irs and treasury to turn over the documents. Cnn learned don mcgahn refused a white house request to publicly state the president did not obstruct justice to paint the Mueller Report as a total vindication of the president. This, as the former top lawyer of the fbi countered conspiracy theories pushed by the president in why the russia investigation started. There was a point and time relatively recently where i just became sick of all the bs that is said about the origins of the investigation. I just got fed up with it. The case was about russia. We have written about this. It was about russia, period, full stop. Federal and constitutional attorney with us with a few things to discuss. I want to ask you first about the president s tax records. Lets just, for clarity purposes, does the law require the irs to hand over those returns to congress of the president . I know an individual tax, us normal people, they would be. Is the president protected in any way . No, theres nothing that says this applies to everyone except the president. They have to show this request is for a legislative purpose. They are saying we need this information to make sure the way you are handling the audits is properly done. They have made the request. This has not been challenged before in court. It will be interesting to see what a judge does with it. What is the strategy to counter this . Delay, delay, delay. They refuse to provide the tax returns, which is what they have done, then they say im going to subpoena it as well. Thats two ways to approach this. Im going to use the law that says usual furnish it and issue a subpoena. The next step is court. That process, depending on the judge could take a long time. Thats the ultimate strategy of the white house. Play the delay game. We are going to refuse to provide it, go to a judge, file briefs, have hearings, appeals. They will see how long they can hold off. Get beyond the 2020 election. I want to ask you about former white house counsel, don mcgahn as we get this information that Administration Official said the white house asked him to say there was no obstruction here. I know that chairman nadler subpoenaed mcgahn. He has to appear by may 21st. If not, he will be held in contempt. President trump has instructed mcgahn to defy that subpoena. What is your initial reaction to that . Don mcgahn, i think, tried to do the best he could to play by the book. Hes been a good lawyer. He served the white house well. Hes not the president s lawyer. I think hes tried to make that clear during the time he served as white house counsel. Hes not going to do something simply because President Trump tells him to doette. When it comes to testifying before congress, the white house has executive privilege. Don mcgahn said, look, its not up to me to give this information, its up to the president. If the president says its executive privilege, im not going to talk to Congress Unless a judge tells me i have to. We have a congressional finding of contempt, perhaps. That doesnt mean a lot unless a judge formally holds the person in contempt with the threat of throwing the person in jail. Let me ask you this, what difference does it make, legally, if mcgahn says the president obstructed . No difference, legally. Ultimately, hes not the one making the decision to pursue criminal charges of indict the president. It would make the president feel better. He was in the white house. He was on the receiving end of some of these instructions that some people have called obstructed. If he says i didnt feel obstructed, maybe obstruction was not relevant. Legally, it has no significance at all, but makes trump feel better. What do you make of the fbi saying, you know what . This was a valid investigation . How much does that matter . I think it matters a lot. Think of how unusual that is for an fbi lawyer to publicly say the reason we undertook this was for a legitimate investigative purpose. We dont see that for other investigations. I think this particular lawyer felt there was so much misinformation in the public about the reason the investigation started that he wanted to clear the record. I think he did. There are many who support the president and believe the fib is tainted to begin with. Well see, right . There is an ongoing Inspector General investigation within the department of justice to determine why the investigation began, how much related to this dossier and how much related to hard, evidence. Try to do it before we have the facts is what would have to be present to show the investigation was invalid or politically motivated . You know, since this is a fisa investigation, its murky. The information you provide to fisa, the thing that is different from a normal court subpoena, its not done in public, its in secret for good reason. The type of information they want is not highlights. They want as many details as possible. Its not unusual, in my practice to see a Law Enforcement officer approach a judge and get details that may not be the single motivating factor or the strongest factor, but part of the whole picture. The judge wants to know the entire picture. You cant criticize them for giving information about a dossier, even if it wasnt the most critical piece of evidence at the time, its the entire part of the picture. Thank you for walking us through it all. Good to have you here, thank you. Talk about the goods worth 300 billion facing a new tax. A u. S. Trade representative said President Trump is adding tariffs to essentially all imports from china after trade talks with top negotiatored failed. What we are hearing from china this morning about it. Plus, troubling information about whether two suspects in the Colorado School shooting this week. We hear from a former classmate who says one of the suspects always joked about killing his classmates. New details in the disappearance of 4yearold ma leah davis. What is on a video, straight ahead. Ng and you want to make sure to aim it. Im aiming it. Ohhhhhhh i ordered it for everyone. [laughing] dad vo we got the biggest subaru to help bring our family together. 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As have tears in the stomach or intestines, serious allergic reactions, low blood cell counts, higher liver tests and cholesterol levels. Dont start xeljanz xr if you have an infection. Your doctor should perform blood tests before and while taking xeljanz xr, and monitor certain liver tests. Tell your doctor if youve been somewhere fungal infections are common and if you have had tb, hepatitis b or c, or are prone to infections. Dont let another morning go by without asking your doctor about xeljanz xr. Dont let another morning go by without asking your doctor just waitll you get to the beregister. Isnt it . Introducing new lower prices on produce. Atta boy burke at fso we know how ton almost evercover almost anything. Even rooftop parking. Strange forces at work . Only if youre referring to gravityand we covered it. Talk to farmers. We know a thing or two because weve seen a thing or two. We are farmers. Bumpadum, bumbumbumbum the trade war between the u. S. And china heats up, again. President trump is set to raise tariffs on all remaining imports from china. They are valued at approximately 300 billion. This comes after the Trump Administration and china failed to strike a trade deal. The u. S. Slapped a 25 tariff hike on 200 billion of goods. Some of the goods, fish, produce, electronics, building materials, a lot of things you use every day. Overnight, the Chinese Government responded saying they are not scared and vow to take all necessary counter measures. I want to get to Cnn International correspondent, matt rivers following the story from china for us. Matt we know that the retaliation from china is inevitable. Do we have answers as to when and how that might happen . Reporter not anything specific, yet, from the Chinese Government. We are expecting the Commerce Ministry to come up with a set of measures because thats what they have done throughout the trade war. A lot of different theres a lot of different ways china can and will retaliation against the United States. The first thing you look at is american imports. When america sends things to china through ports in the east coast city. Most of those products are already facing tariffs. The Chinese Government could raise the rates on the tariffs and make the products more expensive to import here and chinese buyers would go elsewhere. They can do other things to hurt the heartland of the u. S. We have been reporting about soybeans. It might seem obscure, fwu u. S. Ships billions of dollars of soybeans from the u. S. To china every year. There were restrictions put up and chinese buyers stopped buying them. Could they come back up . Its a possibility. The odds of a deal working out here is the question we have. Lets play sound with the top chinese economic negotiator. Translator at present, both sides reached consensus in many aspects, but frankly speaking, differences still exist. We think the differences are crucial issues regarding our principle. Every country has its principle and we will make no concessions on matters of principle. Reporter not to get too deep into the weeds, but what the United States wants china to do is operate the economy differently. The state runs the economy. The government has its hand in every single industry. That gives Chinese Companies an unfair advantage. China says, no, thats how we do things here. Thats our principle. Its unclear how the two sides meet in the middle. I think we could see this trade war continue to escalate. Matt, theres politics, of course, on both sides and pressure on both president s. For xi, its the impact on slowing down what has been a slowing economy. What are the feelings of those there that you talked to . Reporter i think, if you believe what the white house is saying, it was really the chinese side that changed the agreement at the last minute and kind of style, china knew how that was going to be received by the United States. You are right when you say inner politics are in play here. Its like in the United States. The hard liners are winning out. They would then give you the notion the Chinese Government, right now, has enough confidence in the economy, they think they can weather the storm better than the United States. If you ask outside experts, theres opinions of how long china can do this. They dont have to deal with the politics the United States does. Theres differences in terms of which economy is stronger. Both sides feel now is the time to push for what they want. Their economies at home give them coverage. This will play out. Thats the only way to tell which economy is stronger in the end. Matt rivers, thank you so much for break it down for us. Good to see you. 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