Did trump push for foreign interference to get an edge over a campaign rival . Will the white house release full details of that conversation . How will Congress Respond . Secretary of state mike pompeo joins us live. Plus, trumps former defense secretary, jim mattis. Remembering Cokie Roberts. She was unafraid of bishop or political figure and she delighted in letting both know that fact. Trailblazer, mother, friend. Our round table celebrates her life and legacy. Sam donaldson and george will return to remember our colleague. Announcer from abc news, its this week. Here now coanchor martha raddatz. Good morning. Welcome to this week. A place that was a professional home for our Cokie Roberts for more than 30 years. Throughout the morning well be celebrating our colleaguan here washington at st. Matthews cathedral on saturday. Hundreds gathering to remember her life, her legacy and her love of family. Since her very first show as an anchor on this program in 1996 cokie promised to bring you the news each sunday morning. Well start with that. We begin with the rising tensions between iran and the u. S. The administration is pointing the finger at iran holding it responsible for the attack on Saudi Oil Facilities last week, the secretary of state calling it an act of war. President trumps response has run the gamut saying the u. S. Was locked and loaded sunday. Then swinging to talk to a peaceful resolution on thursday. Heres what he said friday in the oval office. I think it shows far more strength to do it the way were doing it, whether its now or three weeks. Doesnt make any difference. The strong persons approach and the thing that does show strength would be showing a little bit of restraint. So far the only concrete steps trump has taken are to impose more sanctions and deploy a modest number of troops and air Defense Systems to saudi arabia. Where do we go from here . Do trumps varied responses keep iran guessing or invite further escalation from iran . Lets bring in secretary of state mike pompeo. Welcome back to this week. Martha, great to be with you. Thank you. Mr. Secretary, the pentagon announced friday in response to attacks on the Saudi Oil Facilities, the u. S. Will be sending more air defense to saudi. The president also announcing more sanctions. What kind of message does that send to iran, a nation you say conducted an act of war . Martha, we have 40 years of terror from this nation. They conducted an attack on oil fields, one of the largest attacks on the Global Energy supply in history. President trumps strategy that we laid out two years ago is working. We are well on our way to forcing the Iranian Regime to ultimately make the decision to become a normal nation. Thats all we ever asked. The president made a couple decisions on friday. We tightened sanctions on the regime. That put the revolutionary regime in a difficult position. The iranian people applaud that. They understand that their leaders are taking them in a direction not good for their country. We then announced were going to move some additional forces. The secretary of defense talked about that thursday. Each of those is aimed as deterrents. We want a peaceful resolution. Thats our objective. We have hope the work weve done to keep the straights open and the additional Defense Systems and capabilities we put put put region will achieve that. Mr. Secretary, the saudis have over one dozen Patriot Missile batteries, yet the cruise missiles got through. What does sending more air defense over there do . It will improve. Its about value and density. Martha, you know this story well. It will improve the capabilities for them. Were going to strengthen all the capabilities there. It will make it more difficult im glad you acknowledge this was an iranian attack with land attack cruise missiles. It was an agent of war by a state. Im here in new york. Well be at the u. N. Talking about it. We hope the United Nations will take a strong position. It was designed for this specific thing. I know the iranian people want a peaceful resolution and an Iranian Regime not engaged in terror and mayhem. You say the plan is working. The stated purpose of the maximum Pressure Campaign is to reduce irans maligned activity and prevent them from Getting Nuclear Weapons through tough economic sanctions. Let me just go through this. Since you pulled out of the nuclear deal there have been attacks on oil tankers, shooting down a sophisticated drone, that cost more than million, the attack on the saudi oil fields, we closed the consulate and reduced our diplomatic core by 50 and iran is breaking the jcpoa limits on enrichment and storage. Isnt this campaign having the opposite effect you hoped for . Martha, some of the facts you have there arent right. You started the clock at the wrong moment. We took over when the Previous Administration handed this regime this revolutionary zealous regime, 150 billion. They created the wealth and resources for them to do that. You said some of the facts were wrong. Whats martha, its important your viewers understand during the jcpoa ,not after President Trump made the correct decision to withdraw, but during the jcpoa there were dozens of missile attacks into saudi arabia iran. There were assassination campaigns conducted in europe. Im aware of that mr. Secretary. Since you pulled out of the jcpoa youre disputing the fact that they bombed an oil field, or that the consulate was closed . No, maam. Clearly they bombed that oil field. Were working to extinguish their capability. Weve seen it. Weve seen hezbollah struggle with resources. We watched internal Decision Making over whether they should arm their armed forces. Theyre having to remember, martha, we only had these tough sanctions on since may. Were at the start of the sanctions campaign, not the middle or end. The iranian economy will shrink by somewhere on the order of 10 to 15 this year. The regime knows their people wont stand for this. The iranian people understand bringing back dead iranians from syria and iraq is not going to sit well with the iranian people. Thats who we support. Thats our mission. Secretary pompeo, President Trump has had some very strong words, very strong tweets about iran. Lets go to one of them. To the president never, ever threaten the United States again or you will suffer consequences the likes of which few throughout history have ever suffered before. We are no longer a country that will stand for your demented words of violence. Be cautious. That was a year before iran shot down the 130 million drone. The consequences of that were that the u. S. Launched a cyber attack and placed sanctions. Senator Lindsey Graham said he believes iran saw this as a sign of weakness by the u. S. Why do you think the economic sanctions is sufficient to deter iran in the future . President trump and i both want to give diplomacy every opportunity to succeed. I think the whole world knows, when that fails, when its the case we no longer believe that we convinced the Iranian Regime to behave in a way behave like a normal nation, i think the whole world knows, including Iranian Regime, of American Military might. Are you confident we can avoid war . Iran doesnt seem confident. We think so. We iran began as an antisemitic, antiamerican nation. Were taking this on in a serious way. Were working diligently to see that it has a diplomatic outcome. If were unsuccessful and if iran continues to strike out in this way, President Trump will make the decisions necessary to achieve our objectives. I want to turn to the whistleblower complaint, mr. Secretary, the complaint about a phone call to a foreign leader. The inspector general, thats where the complaint was launched. Its alleged President Trump pressed the president of ukraine eight times to work with Rudy Giuliani to investigate joe bidens son. What do you know about those conversations . You just gave me a report about a a whistleblower complaint, none of which ive seen. I can tell you about this administrations policies with ukraine. The Previous Administration was begged by the ukrainian people to deliver defensive arms so they could protect themselves from Vladimir Putin and russia and they gave them blankets. This administration took seriously the responsibility to help the ukrainians defend themselves. We woe we worked on that. We want a Good Relationship with ukraine. Let me read something. Let me ask you something. The ukrainians said they discussed investigation of cases which inhibited the interaction between ukraine and the u. S. A. The president tweeted it was a perfectly fine and respectful conversation. Do you think its, quote, perfectly fine to ask a leader to investigate a political opponent . I saw a statement from the Ukrainian Foreign minister said there was no pressure applied in the conversation. I do think if Vice President biden behaved inappropriately, if he was protecting his son and intervened in a way that was corrupt, i think we need to get to the bottom of it. I hope that we will. I hope if Vice President biden engaged in behavior inappropriate weve seen no evidence of that. American cannot i want to go back to the question. America cannot have our elections interfered with. If there was that kind of activity engaged in by Vice President biden, we need to know. Theres no evidence of that. If the conversation was perfectly fine as President Trump said, why not release the transcript to the public . The white house will have to answer that. We dont release transcripts. Its a rare case. Those are private conversations between world leaders. It wouldnt be appropriate to do so except under the most extreme circumstances. Theres no evidence that would be appropriate. Thanks so much for joining us this morning, secretary pompeo. Thank you, martha. When we come back james mattis weighs in and we remember our colleague and friend Cokie Roberts. With our power house round table. Plus the return of Sam Donaldson and george will. Well be right back. What might seem like a small cough can be a big bad problem for your grandchildren. Babies too young to be vaccinated against whooping cough are the most at risk for severe illness. Help prevent this talk to your doctor or pharmacist today about getting vaccinated against whooping cough. The one thing you learn pretty quickly, is that theres a lot to learn. Grow with google is here to help you with turning ideas into action. Putting your business on the map, connecting with customers, and getting the skills to use new tools. 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That w secretary general james mattis testifying before congress on the threat posed by iran. General mattis is the author of a new book called call sign chaos learning to lead. General mattis joins us now. Secretary mattis, i know youre hesitant to talk about the trump minut administration and current events, but you have dealt with iran for decades. We know they want sanctions lifted. What do you think iran is thinking at this point . Well, iran, martha, is continuing to do what theyve done for nearly four decades now. That is be a destabilizing influence as they promote their brand of how they want the middle east to go, their brand of how they want to lead the middle east into this fervor that gives the regime its bona fides. They want to look like the leader. Theyre trying to craft the Foreign Policy that pushes others around. Its the same thing theyve been doing for many, many years. Not the iranian people, but the Iranian Regime. These attacks have increased significantly in the past few months. Why . Well, the iranians in terms of leading right now feel theyre under pressure. They are under pressure. Theyre going to react the way theyve always reacted. Just a few years ago they put together a plan to murder the Saudi Arabian ambassador to washington, d. C. Less than two miles away from the white house. This is the way this regime conducts its policies. They attacks our embassies. They attacked other peoples diplomats. They murdered the former Prime Minister of lebanon. This is their modis operandi. Theres nothing new here. In your book you mentioned two instances where you felt the United States didnt respond forcefully enough. There was an attack in 2012 after an iranian fighter jet tried to attack a u. S. Drone. Heres what you wrote about the drone attack. I wanted calculated actions to restrain the regime so it couldnt thrust us into war. Once again the iranians were not held to account. I anticipate theyll feel emboldened to challenge us more. Do you feel theyre emboldened to challenge us more . I think anyone looking at this situation judges that martha. This is not something that should be simply an American Administration policy. You see other nations, as secretary pompeo mentioned, come in to help on the freedom of navigation patrols. This is a situation when you need your allies and partners. When you need them, you have to build trust that we have a coherent strategy. We have to persuade our allies to be with us. This is a situation whose best possible outcome will come from a coalition of nations that wants to stabilize the middle east. That has to be our goal. , to stabilize this situation as soon as possible. Are you concerned with the u. S. Withdrawal from the nuclear deal, which the europeans did not want, could complicate those efforts to work with them to counter irans aggression . What we have to do is we have to play the ball where it lies right now. We need to work with our allies, come up with a clear political end state which were trying to achieve. I think thats pretty easy to articulate. We want an iran that doesnt destabilize the middle east, doesnt attack its neighbors. Doesnt try to kill diplomats. Theyre pretty basic principals and then we Work Together economically, diplomatically. In the defense area as well to neuter what iran is trying to do, the mischief theyre trying to create. Do you believe there should be a military response to what just happened . Im outside the area of responsibility, a position of responsibility. Im always reluctant not knowing the full story to give advice like that, ma that. We want to use every diplomatic and economic means. Sec