Room. This is cnn breaking news. As george h. W. Bush is laid to rest here in texas, President Trump is taking a cue from bush 41 to fill a very critical opening his cabinet. Sources now tell cnn that bushs former attorney general william barr is emerging as a leading candidate to lead the Justice Department once again, potentially replacing Jeff Sessions and inheriting oversight of the russia investigation. The president weighing his options right now at a very sensitive moment in Robert Muellers probe. The special counsel is poised to reveal new information tomorrow involving two central figures, Paul Manafort and Michael Cohen, and tonight mr. Trump and his legal team, they are bracing for impact. This hour ill speak with congressman eric swalwell. He is a democrat who serves on the intelligence and judiciary committee. And our correspondents and analysts are also standing by. First, lets go to our senior White House Correspondent jeff zeleny. Jeff, after a lot of speculation about a potential white house shakeup, the president seems to be moving forward in his new search for a new attorney general. Whats the latest . Wolf, good evening. The president could not wait to fire his attorney general Jeff Sessions, but he has taken longer to hire a permanent replacement. But tonight we are learning that one of the leading contenders for the position is someone who indeed has held the position before. William barr was the attorney general for a couple of years during the first bush administration, whose been on hand for all of the ceremonies here this week in washington is described to us by officials as one of the leading contenders. Of course, the president could always change his mind. See still reviewing others as well. But wolf, the question is, if he named him, if he was confirmed, what that mao would mean for the russia investigation. President trump is moving closer tonight to nominating a new attorney general. Cnn has learned that william barr, who led the Justice Department under president george h. W. Bush 25 years ago is emerging as alleged candidate. The president has not made a final decision officials say, but is strongly considering the veteran washington lawyer. Its been one month since trump fired attorney general Jeff Sessions. I put in an attorney general that never took control of the Justice Department, Jeff Sessions. Never took control of the Justice Department and its sort of an incredible thing. Reporter after months of publicly chastising him for his recuse until the russia investigation. Even my enemy says that Jeff Sessions should have told you that he was going to recuse himself and then you wouldnt have put him in. Reporter he named loyalist Matt Whitaker as acting attorney general, technically overseeing the russia probe that lies at the heart of President Trumps anger. But tonight the president is contending with more fallout in the markets worldwide after the arrest of a top chinese executive heightened concerns about a trade war with china. The cfo of huawei was arrested saturday, just as trump and chinese president xi jinping agreed to a trade truce over dinner at the g20 summit in argentina. National security adviser john bolton today saying he knew about the arrest, but would not say if trump did. I dont know the answer to that. I knew in advance, but this is something thats that we get from the Justice Department and these kinds of things happen with some frequency. We certainly dont inform the president on every one of them. Reporter meanwhile, a month after the president signaled staff changes are coming people leaf. People leave. Reporter so far the west wing and cabinet look just like they did before the midterm elections. Were looking at different people for different positions. You know, its very common after the midterms. Reporter after being on the brink of being fired, the president has warmed to Homeland Security secretary kirstjen nielsen. She has been given at least a temporary reprieve even though he has made little secret of his dissatisfaction over immigration. Id like her to be much tougher on the border, much tougher, period. Reporter still, white house officials are brace fogger more staff changes as the president nears the halfway mark of his first term in office. Chief of staff john kelly is among those up in the air, with the president often giving him a mix red view. There. Are certain things that i love what he does and certain things that i dont like that he does. Reporter avenue being unusually silent during the state funeral ceremonies for george h. W. Bush, trump began voicing discontent today again on twitter. Without the phony witchhunt and all that we have accomplished in the last two years, my Approval Rating would be at 75 rather than 50 he added. Its called president ial harassment. And wolf, a bit of a reality check on the president s Approval Rating. Its not 50 in most polls. About the average in the low 40s or. So but never mind that its clear that the president is beginning to focus back on the matter at hand here, that russia investigation. He has not said anything publicly at least about the things weve learned this week, most notably, the National Security adviser he fire in order than a year ago, of course cooperating with the special counsel, interviewing him some 19 times. The president not yet talking about that publicly, but wolf, all that could change tomorrow as were expecting so much more news and information coming out of the special counsels office. Wolf . Tomorrow could be a really, really big day. All right, jeff zeleny, thank you very much. And the russia investigation tonight, trump confidante roger stone is speaking out after invoking his fifth amendment rights to avoid testifying before the u. S. Senate and turning over what he describes as truckloads of documents. Lets go to our Political Correspondent sara murray. She is working the story for us. Sara, President Trump araised roger stones defiance in the russia probe earlier in the week, and you had a chance to speak with him. What are you learning right now about any coordination between the two . Wolf, remember earlier this week, trump praised roger stone said he had guts because he said he would never testify against the president. Stone insisted there has been no communication between the president s lawyers and his lawyers. He says they dont have a joint defense agreement, and in a speech here in d. C. , he insisted the president s tweet was nothing more than a tweet, certainly not witness tampering. I was proud to see a tweet from the president of the United States who lauded me for my guts. Now, some in the Mainstream Media went immediately to a post of all liberal legal analysts who said that the president s tweet could cute witness tampering. Absurd on the basis of the fact that i have said the exact same thing on the record on numerous forums for the last two years. Now, wolf, obviously some read the president s tweet as a nod to roger stone, that maybe he would pardon him if he ended up in legal trouble. Roger stone obviously downplaying the idea that there is any kind of obstruction of justice going on here, wolf. As you know, sara, the senate wants stone to testify, but he is refusing to do so by pleading the fifth. Is he changing his mind . Well, i certainly think he is trying to play a little bit of a game with the senate here. He made it very clear he was not willing to testify behind closed doors, but said maybe i would be willing to reconsider if they made that public. Here is how he described it in his speech today. Have i elected to invoke my fifth amendment rights when it comes to the witchhunt being conducted by the Senate Intelligence and the Senate Judiciary committees. Just for the record, i informed through my attorneys both of those committees that i would not be turning over three tractortrailer loads of documents for them to root for, and i will not testify unless i am allowed to testify in public so that the American People can hear every word. Now its worth noting that stone has already testified in private before the house intelligence committee. He says things are different now that he knows that hes actively under investigation. I asked him what he would do if he heard from the special counsel, if he would also invoke his fifth amendment privilege ares when it came to mueller, and wolf, he refused to answer the question, saying its a hypothetical and he has learned not to answer those. Joining us now, congressman eric swalwell. He is a democrat. He serves on the intelligence and judiciary committees. Congressman, thank you so much for joining us. Let me give you Immediate Reaction to roger stone. What do you think . Good evening, wolf. Well, i dont think you have a lot of guts if you are refusing to cooperate in an investigation thats trying to secure our elections. And if you admire President Trump so much, then you must also admire his words in september 2016 when he said who takes the fifth . Only the mob takes the fifth. So unless youre associating yourself with moblike tactics, you i dont think have much guts, and it looks like roger stone has much to hide. Ill leave it at that. Wolf. William barr is now emerging as President Trumps possible nominee as attorney general. If nominate and confirmed, he would oversee the Mueller Investigation. Would you support barrs nomination . Im certainly open to it, and i think as weve seen over the last few days, you know, how honorable of man george h. W. Bush was, someone who was kind, who loved his country, who sought to unite us and led with optimism that this individual served in his administration, i think that must give him some credential. I would want to know, though, has he ever talked to President Trump or kniffin anyone in the r the administration who has ever expressed thoughts or prejudged the investigation and whether he would pledge to allow bob mueller to continue to follow the evidence and reach its natural conclusion. Right now he sounds a hell of a lot better than Matt Whitaker who already has prejudged the investigation. And according to vox. Com reporting, has plotted with the president to try and take over the investigation. Do you think barr would get confirmed by the senate . Well, if all of that is true, that he has not talked to the president , that he hasnt prejudged the investigation, that he would allow bob mueller to finish his work, i do think he would be confirmed. Look we do need an attorney general. I accept that donald trump is allowed to make and have people in his cabinet who he wishes i just want to make sure that the rule of law is followed. And thats what is at stake right now with Matt Whitaker being there. So i think mr. Barr certainly deserves a fair hearing. Well, what would be your concerns if Robert Mueller actually finishes his final report before the president is able to confirm a new attorney general . Well, my biggest concern would be that congress would not have access to the report, and that the president would seek to stand on executive privilege and prevent us from seeing it. However, i think bob mueller is going to continue to speak through indictments and i expect that in the coming weeks, considering the number of grand jury witnesses who have come forward that we will see more indictments. But i think its imperative that the congress, particularly the House Judiciary Committee where i sit is able to see the Mueller Report as soon as it is presented to the attorney general or acting attorney general. What do you expect, congressman, from the mueller findings tomorrow on both Michael Cohen and Paul Manafort . Well, i expect that we will see that President Trump, his family and his campaign were eager to do two things during the pend dentsy. They were eager to work with the russians and they were eager to do business with the russians. Also we have found that when confronted about it, people like Michael Cohen and Michael Flynn and Paul Manafort have all lied. And so i expect youll see more evidence of candidate for president of the United States drawing himself very close to our adversaries. Wolf, as you sit there in honor of george h. W. Bush, you cant help but listen to all the tributes said about him, he was person who knew who our allies were and who were not. That distinguishes him with the current occupier of the white house who was so eager to work with a foreign adversary. The special counsels filing on Michael Flynn, the president s former National Security adviser revealed there are three ongoing investigations. So does it sound like things perhaps arent wrapping up quite yet . Thats right, wolf. There are three ongoing investigations. It looks like at least one of them relates to the trump russia question as to whether they worked with the russians. But it also signals that when they are able to get witnesses to cooperate and tell the truth, and it took 19 interviews to get there with Michael Flynn, they can learn a lot and they can do a lot. But when witnesses lie, tamper, obstruct, as we have seen with Paul Manafort, it really sets back the investigation. And i say that because donald trump, as much as he complains about the length of the investigation, he ultimately drives the length of this investigation i think more than almost anyone else who is in it. So if he were to just cooperate, sit down with the special counsel, stop trying to obstruct via twit other dangling pardons, we could reach a conclusion much sooner. What do you think that filing reveals about others in the trump transition who potentially might be pretty vulnerable in the Russian Investigation . Well, this was a transition unlike any wed seen in any prior administration, wolf. We saw that Jared Kushner and steve bannon and many others were taking meetings with foreign nationals before the Obama Administration had even left. Knowing that they were doing that and knowing that Jared Kushner has failed to disclose prior foreign contacts, knowing that he was financially vulnerable because of his prior financial dealings, i hope that we answer the question as to whether Jared Kushner has be compromised or as to whether Jared Kushner has been trying to access or cash in on access to the white house. And i expect that will be a part of the special counsels final presentation to congress. Congressman, before i let you go, on a very different subject, you tweeted in support of a proposal of a Biden Swalwell ticket in 2020. Are you prepared to run in 2020 as either a president ial or a Vice President president ial candidate . Or swalwell biden, wolf. Im open to entertaining both variations. And i was actually as a fan of cher and my mom has been to many of her concerts, my mom was thrilled. I think my mom has sent that to every person in the world she has ever talked to. Well see what happens on that front. Congressman swalwell, thanks for joining us. My pleasure. More news were following. Just ahead, more on President Trumps possible pick for attorney general. Would william barr move to limit Robert Muellers russia investigation or even kill it. Plus, a reported secret turkish lobbying effort involving former National Security adviser Michael Flynn. Did he discuss kidnapping a turkish cleric . With an ingredient originally discovered. In jellyfish. In clinical trials, prevagen has been shown to improve shortterm memory. Prevagen. Healthier brain. Better life. I can do more to lower my a1c. Because my body can still make its own insulin. I take trulicity once a week to activate my body to release its own insulin, like its supposed to. Trulicity is not insulin. It works 24 7. It comes in an easytouse pen. And i may even lose a little weight. Trulicity is an injection to improve blood sugar in adults with type 2 diabetes when used with diet and exercise. 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