Reporting tonight from the white house. Pelley this is our western edition. Were reporting from the white house tonight because of the rapidly developing investigation into whether the president tried to shut down an f. B. I. Investigation of his administration. Among the developments late today, the department of justice Just Announced it will appoint former f. B. I. Director Robert Mueller as an independent special counsel to investigate the Trump Administration and allegations of russian interference with the president ial election. The chairman of the House Oversight committee tells cbs news he expects fired f. B. I. Director james comey will testify next wednesday. The stock markets fell sharply in the turmoil. The dow down 372 points, almost 2 . The nasdaq fell by more than 2. 5 . Mr. Trump complained today that it has been another day of momentous events, and jeff pegues has the latest. Reporter the Tipping Point came yesterday when it was revealed that former f. B. I. Director james comey had taken notes about his february meeting with President Trump. The meeting took place the day adter National Security adviser Michael Flynn was fired for lying to the Vice President about his contacts with Russian Ambassador sergey kislyak. Nn his memo, comey wrote that President Trump said, i hope that raised the specter of obstruction of justice. And today, Deputy Attorney general Rod Rosenstein decided that the Justice Department could no longer run the investigation. Co authorized a special counsel rosensteins pick of Robert Mueller to run the investigation puts a veteran Law Enforcement official at the helm. Mueller is best known for leading the f. B. I. For 12 years fter the 9 11 attacks. Before that he led the u. S. Investigation of the pan am 103 bombing in 1988. Pre recently in private roactice, he conducted the probe of Domestic Violence in the n. F. L. The white house has denied comeys account of the february meeting, and it continues to lash out at those leaking to the press, but some former and current u. S. Government officials believe it is their patriotic duty to expose the truth. It is unclear who at the justice mapartment and f. B. I. May have seen comeys memos. D. O. J. Today declined to comment on whether attorney general jeff rossions or rosenstein had read them. Sessions was forced to recuse himself from the russia investigation after revelations t hit his own contacts with the Russian Ambassador, sergey kislyak, but he did play a role in comeys firing. Isbassador kislyak, who met with the president last week, is central to the f. B. I. s investigation. In december, u. S. Intelligence picked up intercepts of flynn and kislyak discussing president obamas justannounced sanctions on russia. Cbs news has learned that investigators believe flynn may have been acting on orders from someone else. James clapper was the director of National Intelligence at the time. Were you concerned that Obama Administration policy and this nations National Security was being undermined by somebody internally . I will simply say that weve had a long standing principle in our country of one president at a time. Reporter was that adhered to in this case . Well, that you can draw your own conclusions about that. Reporter it is now up to Robert Mueller to come to those conclusions, scott. He will have the power to to the best of my ability. Pelley jeff pegues, thanks. Margaret brennan has the late reaction from the white house. The president responded with this paper statement, i will read to you saying, quote, as i have stated many times a thorough investigation will confirm what we already know, there was no collusion between my campaign and any foreign entity. I look forward to this matter concluding quickly. In the meantime i will never stop fighting for the people and the issues that matter most to the future of our country. Now this news broke as the white house was interviewing candidates to replace comey at the fbi. No politician in history i say this with great assuredly, has been treated worse or more isfairly. You cant let them get you down. Reporter a defiant president ngump rallied grand jury waiting coast guard cadets by recounting his own approach to diversity. You will find that things are not always fair. You will find that things happen to you that you do not deserve and that are not always warranted, but you have to put your head down and fight, fight, fight. Reporter sources say the president s own frustration is at a high point. Hes doubting his top advisers, even soninlaw jared kushner, who supported firing f. B. I. Director comey despite the ongoing russia investigation. The white house is also trying to contain fallout from President Trumps decision to share classified intelligence with top Russian Diplomats. Prday in moscow, russian president Vladimir Putin dismissed the scandal as political schizophrenia. Putin even said he would share transcripts of the president s comments with the u. S. Congress if the white house approved. White house Spokesman Sean Spicer said he was unaware of any Russian Recording of the meeting and said the public should rely on the accounts given by National Security adviser h. R. Mcmaster. What the president shared was wholly appropriate. Reporter President Trump today said hes trying to ignore the media firestorm. I didnt get elected to serve the washington media or special interests. Ingot elected to serve the forgotten men and women of our country, and thats what im doing. Reporter scott, a senior white house official told me that the administrations plans to broker a deal with russia in syria have not advanced as planned in large part because of what they see as bogus media reports about the president s ties alleged ties to moscow. Pelley margaret brennan, thanks. E w, last night the House Oversight committee asked the f. B. I. To produce all of the notes of former director comeys conversations with the president. Jason chaffetz chairs that committee. Hes joining us now from utah. Mr. Chairman, how does the appointment of a special prosecutor change your plans to investigate this . Look, the house has its own equities, and we will continue to pursue our own investigation and still plan and hope to have a hearing with director comey as early as next week. I do applaud and i do think that the department of justice, if they saw fit to appoint this special counsel, director mueller, impeccable credentials. I think hell provide a great deal of comfort on both sides of the aisle. Hes a real professional. People will have great trust in him. He served in the Obama Administration. He served in the bush administration. But amazing credentials. Hell do a great job. Pelley do you expect to have y e fired f. B. I. Director james comey sitting in the witness chair on wednesday . Weve had a little bit of trouble contacting him. Tes telephone number changed dence he left the department of wstice, but we have formally noticed the hearing for next 0 dnesday, 9 30 a. M. Eastern time, and ive got some flexibility. It comes with an asterisk because i havent spoken with director comey yet, but we do hope to hear from him and see the documents. Remember, nobody has actually seen these documents, so we have to secure those documents, as well. Pelley what documents are you asking for . Well, you know, the New York Times report said that there were these documents and notes that director comey had taken, but we havent seen the content of those. Theyve only been read out to a reporter, at least part of them have been. So we want to see what those documents are, and then well talk to director comey and rsderstand from his perspective thw did he take the information and the conversation with President Trump. What was his reaction to it . And at the time, did he actually do anything about it, and if so, idat did he do, and if he didnt, why not . Pelley do you intend to have this hearing in public . Yeah. I think its important that the public gets to hear this. You have democrats and republicans both peppering the former director with questions. Hes well seasoned in doing this, but it really should be in public. Pelley republican jason thaffetz, the chairman of the House Oversight committee. Thank you very much. Thank you. Pelley nancy cordes is on capitol hill with the reaction there. Nancy . Or reporter scott, democrats ine hailing the appointment of a special prosecutor as a victory and a good first step, and the move will be welcomed by a small but growing number of republicans, as well. In fact, just today alaska republican Lisa Murkowski put out a statement saying that w these white house crises are eroding public trust and it may be that we need to look to an independent commission or special prosecutor to regain that credibility. This as her Party Debates just how damaging these comey memos are and what they mean for the thesidents future. If the allegations are true, yes. Reporter michigans justin amash today became the first thpublican to say the president s actions might merit impeachment. I think its pretty clear i have more confidence in director comey. Reporter the latest allegations have deeply rattled many republicans. It would be very serious, and i would think that the Justice Department would take a look at that. I think its reaching a point where its of watergate size and scale. Reporter three republican led committees have sent letters to the f. B. I. Seeking any notes or memorandum prepared by the former director, memorializing interactions he had with president s trump and obama. Obviously, republicans ought to be concerned. Reporter but for every concerned republican, there are several others who doubt the report. A lot of it is all n. Eculation. The facts just arent in. Ha im convinced that the g esident did nothing that he thought was outside the best interest of this country. Reporter and House Speaker paul ryan urged critics not to rush to judgment. It is obvious there are some people out there who want to harm the president , and im sure were going to want to hear from mr. Comey about why, if this happens as he allegedly describes, why didnt he take action at the time . Reporter the washington igst is reporting tonight that , ul ryans number two, House Majority leader Kevin Mccarthy told ryan and other Republican Leaders in a private conversation last year that he thought that russian president Vladimir Putin was paying donald trump. His aides initially told the paper that he never said that until they were confronted with the existence of an audiotape. Just a few moments ago, scott, mccarthy told reporters that it was a bad attempt at humor. Pelley nancy cordes on capitol hill for us. Nancy, thank you. Cell the classified intelligence that the president divulged to the Russian Diplomats involved isis plans to bring down mbtliners by hiding bombs in laptop computers. Charlie dagata is learning more. Reporter amid the bombedout ruins of mosul university, u. S. Officials say theyve uncovered evidence that isis was developing a new type of bomb that could pass through an airport scanner undetected. We joined Iraqi Special forces here just days after the hard fought battle to recapture the university in january. Its long been believed that sisul university was the center of the militants bombmaking projects, using the schools equipment and labs. U. S. Officials now believe that Research Includes a new generation of more powerful explosives that could be concealed in a computer. When isis overran mosul in 2014, they also captured the citys International Airport and with it all the modern security scanner and screening equipment necessary to test their new bombs. On our trip, there were certain nogo areas. Iraqi forces kept us well away from entering the most sensitive buildings, warning that isis had boobytrapped them. A commander told us isis had also torched some of the facilities in order to hide evidence, but it appears what was left behind has given u. S. Officials new cause for concern. The threat from isis has already led in part to the u. S. Banning electronics on flights from ten airports in the middle east and africa. Scott, talks are now under way on whether to expand that ban to cities in europe. Pelley Charlie Dagata in the london newsroom. Now, in syria, u. S. Backed forces are closing in on the city of raqqa, the isis capital. Families are fleeing the battle, and Holly Williams is inside syria. Reporter in the desert west ex raqqa, there is an exodus. In the only vehicles they have, their belongings caked in dust, they stream out of villages where isis is losing territory. Heme shepherding the animals that are their livelihood. Many women throwing off the black veils that isis forced them to wear. They wanted to suffocate us, to cover us, said busaina al hamoud, who told us she lived under isis for three years and had her 13yearold son smuggled out of the country, fearing he would be recruited by the extremists. Aisha attia is seven months pregnant and told us she fled her home three days ago. Thousands of people are now camped in the open with precious little water and no medicine. Inside raqqa the u. S. Believes are 3,000 to 4,000 isis fighters, killers and executioners. Theyre expected to fight to the death as americas kurdish partners tighten the noose. They recaptured the town of tabqa and its dam earlier this month, just 25 miles from raqqa. Their commander rojda filat told us theyll reach the city by next month and could capture it by the end of the summer. Thats a long time for these people, who have escaped isis only to find themselves stranded in the wilderness. Holly williams, cbs news, west of raqqa. Pelley coming up next on the cbs evening news, a surprising hevelation Gisele Bundchen made on the cbs this morning program. Stselling brand . You make it detect what they dont. Stop, stop, stop sorry. You make it sense whats coming. Watch, watch, watch mom. Relax im relaxed. You make it for 16year olds. Whoawhoawhoa and the parents who worry about them. 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