Transcript for Gov. Christie to Trump on Mueller investigation: 'Just stop talking. Just stop.'

round table Ed by chris Christie, oubc new contbutor, formevernor of New Jersey, Donna Brazile, Megan Murphy of business week, and and Republican strategy and CNN politicalommentator. Donna, I want to begin with you.you were tling a STO your first encounter wit min 35 years ago. I was a Y staffer working wif our home state heroes,oggs, and I was charged with task ofbying for the king holi and when nt up to is young congressman, he said, weready. I said, what do you mean? Er 300 votes he sai my state, and fast forward 25 years later, John McCain called and said he was going to Memphis to say he was wrong, and years not only did he lobby his state, but John was a man of his word who said, I would this -- continue this CN in March, ae admitted he was wrong, for me aan of color, I would beored if th russbuilding was renamed after John McCain. Not only for his legacy, H service. He kept his word, but when John McCain saw his grandna aftemself, he was so aner. S grandson who carries his name is an African-American as well he was a great man. And that track to the story about Jon Karl about something confederate issue in south rolina. Ssue of race was something that struck to his core as well. Yeah, he got popped both ways though. You remember when he running, treally kind of had a black child then tri toate the issue ofe. The south was torn ace for Su ltime. 'S important for us to heal thtry around that issue,as I haveaid many times, and do as a great champion, you ago aroundhis issue. You have to go through it, and this country quitefrankly, has not gone through it quite the wayshould. I have forgotten just how vicious that campaigt. The souarolina primary, theym down on the issue of race asthat had song to do with WER he was going to be nso it counts be an issue that this count O through. We have to listen to each other, and be open and nd I alwaywe're better together. And better toer is a continuing then John McCain'se. Also a great friend. Listen. That's a story I George. Two days after bridgegate broke in jan14 for me,nd was under siege, I got a call from John in, and he said to listen. I have got one questfor you. He said, you have anything to do with I saiddidn't, sena he saiood. Llthen you'rgetting killed out there. Tell your people to put me on as many TV shows as you can, and I'll stand up for you. Foreeks after the was one of th television saying, I know Chris ristie and hisracter and he didn't hav anything T do ththis. I didn't call him. He calledme, , and as you , very few friends that in politics, he is an person. Hcould be aver the map tically, and we showed him working with DEM in those CLI also many times just went down the line, Republican orthodox as , gled the P Sure. Was fearlesd ter. Hero this and that is som we all re him as, someone who ood his ground. Certainly when he had opportunity to in front of the lane and he said, no.the right thing for S to stack. He didn'break rank, and I mes someone with a wonderful sense of humor. During the '08 campaign, I remember going back he rooms the debates and would go in governor huckas grrooms and practice his say any names,here was one on who was the sct of a lot of hes and governor huee would talk to him a little bit, and walk it ck. Senator McCain would take advice. I dowant to be too rough on something, but he always got in a good P line. Some ofthings N change. You talk about punches and political campaigns. We can't ie this fractured lationship he had had with back to thmpaign WHE psident trump simplylisten. I don't respect ar . He was cred. Robably one of the low was that comment on the mpaign, an I want to back to what they were saying. The moment I remember moat was his 2008 concespeech and when he go tch and Ted to thearticular icance of an afcan-americ man winning thatthe America and that ts was the ve best of America. Xample was very best, WHCA was all about, and when I think a that and E level of discourse and how far he sunk rig there, inflaming racial tensions that we have in this country, and what I hope with thigacy is itl not be just S, but we will all look inside of ourselto say, how do we be moecent and have more compassion because that's what he was a. As one in the race at me, that was the moment of demarcatio whs changed this try. All of us this is over. He said at about jmccain.he is going to have to get out of the race and all kind of preparing ourselves. Not just me, bpoke to rco and je we were all preparing, like, hothe race going to be diet with trump of and the T that didn' end the ra -- that was a real change. I'm glad you said that listen. We have all been wbo B vividly reer that moment as well saying, how is it possible sooncan survivattacking american war hero like that? Yet he did. He did, and, you know, to John main's credit, he never lowered himself T respond. He kept moving. Yeah. Even afe pettiness of the last couple of W with the defense authorization bill, ever lowered himself to respond. Theent where president trump signed it but didn't ion his name. Did not mention his name. Here's a lawmaker, the chair of E fense committee, and armed service.he worked way up becse he cared about veterans, because he D about amic yes, he was a hawk. We had a lot of disagrees, but he cared about hountry. He put his country first. Isn't worth taking a looks like to put country first?body could ecuse John in of being , soft or ough or not pet from time to time, but bipartisan. Lso kind.he also governedh great dignit great strength. Isn'at a good model for us goinrward? If his lifn't be in vain, America ought at what that means for af us. You tend to lionize people in the moment of their death, but this is a man ws definitel T asaint. You talked about his Senf Hur and he H fierce, fierce, fierce temcould be. Heimately found ways around it. He foways to work across the aisle and get things done, and of allponses we ve heard the last 12 hours since his passing, the presidential response is one stands out as ting and endearing. Of course, from president Obama and talkabout how and setor McCain disagreed politically on mthings, but and doing what was right for the country D doing the right thing, regardless of the consequences but understands we have political ences, but that N't mean we cannot work together for the best of this count A lot else end this ek. Of course, we were talking about. Thguilty plea by Mel Cohen, thevictions of Paul nafort. I mean, mega one of the big questions I whinking about as we saw that on Tay afternoon, is this a tipping point? We said so manmes before of what a tipping point is. One thing that'sferent now is we were talking abouting is is anotr bad week, T worstk yet for the administra. Thone of the worst weeks for the country, and here' why. Twofold. You ha mess of mhael when he gets the situas and he feels like things are closing in, he Han irrationay, appeal to the worst instincts of his base, whether ts panderon athletes taking kneeduring the national anthem or immigration. That is how he reacts. Rats to a cner and does things that can be dangerous for the country. I don't think this WHE worst week of the nistration. I think we have many more worse S to come. Whether this is the tipping point, what Bob Mueller ha yet to be seen, but this is an horrle week. Chris Christie, you're a rmer prosecutor a and I want to play a little B of the president's react and thenget your response. Here's president o"fox and he was talking about Paul manafort. One of the reasi Paul mort so much. He went throut trial. Pe make upries. They make up stories. People make up stories. People tabout flippifoall these years, I have been watching fers. Erything'sderful and then they get ten years in jail and they flip on whoever T highest is or as hig you can go. It almosght to be outlawed. Or, I'm Su Y ped more than W. Yes, I DI More than a few witne and pick Megan's point. You rn district and they cooperating witness in the chief financing R, and ins friend, David pecker over at "The nationalquirer." They are reaching deep inside thumrld. Sure, and wdon't know what they are cooper on. W limited or broad the immunity was. Obviou know, we know how we would oe someone thinimmunity, ann broader and are cooperating on a variety of issued the president misunderstands in the comment made is that resible prosecute which I consideredel to beone, you don't just en tomeone who flips. Oborate them. You have to bring in oth evid bse obvious person has told differ storifferent times. You can't just G with that witness. You have to go Ith corrating evidence, do you shoul't bring arainst someone based on on's words. That's the way the system is supposed to work. It would be wrong to aw at, but we have T make sure our ecutors act responsibly and get cboraing evidence. That's what subjects are trying to do. I interview, the president talked about impeachment, and we hearic Swalwell not wouch that word with the ten-foot pole. Democrats th I actually hurt them in the midterm election. Democrats talking about pocketbook issues. We know the American LE want an alternative to the status quo right now. Look. I want to say someth you know, third the ident has thrown a lot of shade -- that's what the kids cat. An shade oe attorney general.he is throng shade othe investigation. It is time the president understands that he has to he constition. He is not ycountant, and your attorney and the keep of secrets are all cooperating with respect to the prs. O you balae ? I understand the concern about appear like you're erreaching, yet these are potentially serious being discussed. I think when Michael Cohen what he DI itook him T a more urgent piece, but I think the lawyey have to impeachm always the last resort. THR is through elections and the Democrat T out and vote tit's pretty clear T ceshas been pretty feckless and completely in terms ofushing back on this ident and making him know dos what theydo, and asovernor chriie said, a thorough itigation. Bob mu a respect prosecutor acrossle, and let him doir work, and let the faand the laks where it ll. What do you think this means for the midterms? Is motivating themes getting LE out to voted what we're seeing from some, frhe president anders out there, dropping the hint of pole impeachnt to encourage reputo get out on the Republican side to Democrats don't con D talk Abo imachment. What I'mring talking as E country, people are focused obs and the ecy.trump's base is there. All of this manafort and Cohen and even pecker, this is T they don't St sticking with the president right now. They say he hasn'done anything wrong. I disagree.think pay to porn stars wrong, bthe real wthat hits a buith a lot ofers is parole. If he starts -- pardons. If he starts talking about pardons, that's where his base will Tur have a prlem with that. T turns out is a point you're getting at. Even firing rod Rosenstein or the atty general at is T, it will not stop. The New York attorney general, or t.sattorney ie southern district, the district attorney here in Manhattan We don't know which one is most dangerous oat Bob has, and where they are with that action. And exactly what you saying. But is this motivg se and causing people to want to turn out in midterms? The Democrats have a sway and people who hate this presidency, who E so motivated by, that but as you are saying, it's issues a health care. It's, my wages G to go up, andhi Democrats are ma a smart by focus on compaes and greed and equality still in country. Is there ytng we can toet ahead of this? Do we have to wait it out? I havven this advice all is -- investigations like thisthere is no to make it shorter, bhere are lot ways to make it longer. The way you maket Lon is EP talking. Just stop tag. Just stop. Of advice he ever going to take. I to continue to give it because the right adviceand I'll tell you this. When youk about Michael Cohen too, a would just say that as a prosecutor, I would look at him as a poten wins and if here the folks in the seen distrif York or Bob Mueller, I want to get a booad of corroboration of they. Becaus not forge wl about the two counts he pled to as a campaign finance. The six other counts he pled to shs guy was liar, a I put liars and cheaters and thieves on the stand too, I have had boat load of corrotion. That's what they were developing. Thatll we have timor today. Thank you veryh. We'l right back.

This transcript has been automatically generated and may not be 100% accurate.