Now. From nbc news World Headquarters in new york, this is nbc nightly news with kate snow. Good evening. Our new nbc news wall street journal numbers out today echo what many recent polls are suggesting the race for the white house is tightening. Our poll has Hillary Clinton leading donald trump in a general election match up by just three points, thats within the polls margin of error. Trump and clinton are the most unpopular candidates in the history of our poll. 54 of voters have a negative opinion of Hillary Clinton. And 58 have a negative opinion of donald trump. Which has analysts wondering tonight what voters will do if theyre faced with two options they dont much like. Kristen welker starts our coverage. Reporter the likely fall fight shaping up to be a dead heat between donald trump and Hillary Clinton. There is no evidence he has any ideas about making America Great as he advertises. Just bad judgment. She suffers from bad judgment. Reporter nbc news wall street journal poll shows clinton leading trump by only 3 points. Down from 11 points in april. While another poll out today shows trump beating clinton by 2 points. As we go through this campaign, we are going to be demonstrating the hollowness of his rhetoric. Hillary is weak. A weak person. Trump has surged with many republicans now rallying around their presumptive nominee. While clinton is locked in a primary fight. Trump invoking her democratic rival today. Bernie sanders said she is not qualified to be president he meant it. Bernie sanders showing no signs of letting up campaigning in california. If you want the strongest candidate to make sure that trump does not become president , we are that campaign. Reporter while touting he leads trump by 15 points in our latest poll, and capitalizing on both candidates historically high unpopular ratings. I dont want to see the American People voting for the lesser of two evils. Is that how you describe, Hillary Clinton against donald trump, the lesser of two evils . If you look, i wouldnt describe it. Thats what the American People are saying. Reporter clinton is keeping her sights on the general election even rolling out a new apparent slogan today aimed at countering trumps divisive rhetoric. We are stronger together. We are stronger together. Reporter clinton hit trump today for telling the nra he wants to end gun free zones which could include schools. A statement trump tried to walk back. I dont want to have guns in classrooms. Although in some cases teachers should have guns in classrooms, frankly. Because teachers are, things that are going on in our schools are unbelievable. Reporter tomorrow trump will meet with bob corker fueling speculation he could be eyeing him for a possible vp pick. Meanwhile, clinton and sanders will campaign in california, the biggest prize left in the democratic race. Kate. Kristen welker. Thank you. We want to take a look at key findings, why the race has become so close and how many voters dont like either trump or clinton. We are joined by our political director, moderator of meet the press chuck todd. Chuck, what does the poll tell us . Kate, the biggest way to look at initial headtoheads when you look at it, our first Major General election test with one presumptive nominee and other likely nominee is that republicans are rallying around trump a lot faster than democrats are rallying around clinton. Thats the easiest way to explain how a double digit lead for clinton last month is suddenly done to 3 points. But the other significant finding in this poll is this as you know, both trump and clinton have unusually high unfavorable ratings. Get this one in five of respondents in our poll have unfavorable views of both trump and clinton. This is the swing vote in this election, kate. These folks are going to determine who is going to become president. Right now most of them would like to see Bernie Sanders as president. And when you ask them, which way do they lean now . A slight plurality lean trump. A good chunk prefer neither, none of the above, third candidate. What the voters end up doing will decide this general. Kate. So interesting. Chuck, thank you. Overseas memorials today for some. 66 victims of the egyptian flight that crashed into the Mediterranean Sea last thursday. As authorities sent an egyptian submarine, joining the search for wreckage and black boxes. We have the report from cairo. Reporter the search for debris and answers is intensifying. But there is not much to show for it. Egyptian crews flying over the sea, robot submarine searching under. We are recovering wreckage. We have been recovering human remains. And other parts of the plane. Reporter but there is no sign the life vests or clothing have helped investigators find the cause of the planes disappearance. So the agony deepens for waiting families. For the father of the pilot. Who called his son a hero. Pilot mohammad shukar had been promoted four days before. His voice calm as he spoke with air Traffic Control two hours before the crash. Thank you so much. Good day. Good night. Reporter the teams searching for the plane are focusing on an area 200 miles off egypt in water thought to be almost two miles deep where the sea bed is more like a mountain range. Finding the flight recorders in this, before their batteries run out will be tough. A former egyptian intelligence official believes the most likely cause is a bomb. 70 terrorist activity, 30 something wrong in the aircraft. Reporter 70 it is terrorism . Yes. Reporter a statement by isis yesterday said, not a word about this plane. Investigators are focused now on data showing computer failures and smoke around the cockpit minutes before the plane disappeared. Egypts president said today, all possible causes are being examined. And the investigation could take a long time. The airline told families, finding and identifying the bodies could take weeks or much longer. Bill nealy, nbc news, cairo, egypt. The u. S. Is involved as well in the search for wreckage from the egyptian plane to. Day our correspondent, lucy cavanaugh, spent hours seeing that effort firsthand aboard a u. S. Navy p3 orion surveillance plane and she returned and filed this report. Reporter we are on board the u. S. Navys p3 orion surveillance plane, 300 feet above the mediterranean. This american crew their task today is to scour the waters of the mediterranean, 90 miles south from where flight 804 initially disappeared from contact. The p3 aircraft is usually out there hunting for submarines. This is a perfect aircraft for the searchandrescue operations. That is because they can stay in the air an incredible 14 hours for one session. They also have this hightech equipment on board. Sonar, radio, as well as radar and video surveillance. And this technology can pinpoint almost any debris that they would potentially find below. But, of course, it really does come done to the human element. Eyes on the ground. These men scouring the waters below. Inch by inch. Hoping to find something, anything at all, that could shed light on what actually happened to flight 804, and the 66 people on board. These crew members were able to find today several pieces of debris that could be essential to the search. But for now, that search still ongoing. Lucy cavanaugh, from on board a p3 plane. Confirmation that the leader of the taliban was killed this weekend in a u. S. Drone strike. The attack took place in southwest pakistan, near the afghan border. Secretary of state john kerry said, mullah Akhtar Mansoor, posed a continuing imminent threat to u. S. Forces in afghanistan. Jim miklaszewski has more tonight. Reporter this is what hellfire missile strikes leave behind, scorched twisted hunk of metal once a vehicle. And the charred mangled remains of its two passengers. U. S. Officials are confident that one of those killed was taliban leader, mullah Akhtar Mansoor. The air strikes occurred just inside pakistans southwest border with afghanistan. U. S. Officials tell nbc news that based on intelligence, audio intercepts, and overhead surveillance, both cia and u. S. Military drones launched multiple hellfire missiles targeting mullah Akhtar Mansoor. Locals claim however that one of the victims was an innocent taxi driver. Since mansoor took over leadership less than a year ago the taliban has been on a tear. Stepping up its attacks against Afghan Forces and seizing more afghan territory. All this after the number of u. S. Military forces in afghanistan was dramatically reduced. Today, in myanmar, secretary of state john kerry suggested the u. S. Strike that took out mullah mansoor should be reassuring to the Afghan Government and people. This action send a clear message to the world that we will continue to stand with our afghan partners as they work to build a more stable, united, secure and prosperous afghanistan. Reporter u. S. Military officials have testified before congress that security in afghanistan is deteriorating. And, it is not clear that the death of mullah Akhtar Mansoor alone will reverse that trend. Kate. Jim miklaszewski at the white house tonight, thank you. We are getting more insight tonight into the dark world of isis. From a Young American who was drawn to the terrorist group. He later escaped, has been talking to the u. S. Government and now to nbc news. He spoke exclusively with our chief Foreign Correspondent richard engel. Reporter this is the first time the man we have been asked to call only mo has been allowed to tell his story to anyone outside of the Law Enforcement system. His crime, he traveled to syria to join and train with isis. Was that your plan to emigrate to live there for the rest of your life . Yeah, that was my intention. Reporter you thought it would be an islamic paradise . Utopia to an extent, yeah. Reporter mo who grew up in new york city seemed to have a promising future. At 23 he got into columbia university, but soon dropped out. Started driving a cab in new york and spending hours online watching extremist propaganda. By the summer of 2014, he took off and made his way into syria. So you went to this isis religious academy . More like a camp. Technically a camp in terms of war. Reporter he says none of the students in class objected to what they were told. They were afraid to. They had a license to do whatever. They had a license to kill. Reporter did people seem insane . Like a blood thirst, i guess. People just had a readiness for violence. Reporter did you see evidence of all of the gore that we see in the isis propaganda . I did see severed heads, placed on spiked polls. Reporter when did you decide this wasnt for you . When i saw how impossible my situation was it felt urgently unsafe. Reporter you cant just walk away, can you . Exactly. Desertion in their perspective is easily punishable by death. Reporter five months after he arrived, mo managed to escape from syria and went right to the u. S. Consulate in turkey. When he got back to the u. S. , the fbi put him under arrest. And for the last year and a half he has been working with the government. He now promises to spend the rest of his life speaking out against extremism. Richard engel, nbc news, new york. And richard will have much more on the story tonight in our special series, on assignment at 7 00 p. M. Eastern. Paris was very much on edge this weekend after the crash of that egyptair flight that took off from Charles De Gaulle airport and feeling of unease since the terrorist attacks last november. This its how it looked last night at the stadium north of paris that was targeted by three suicide bombers. Heavy security ahead of a big soccer match there. Tonight, tom brokaw take is a look at how people in the city of light are coping six months later. Reporter on the surface it all look s normal. It is anything but. Six months ago a home grown terrorist cell unleashed a devastating urban assault. Mainly young people the victims. Enjoying the best of the city. In the aftermath, parisians were determined terrorists would take nothing from them. But that resolve has been tested. Julian pierce survived the massacre at bataclan music. Every day i think about it, and theres not a second that im not thinking about it. Its part of me now. So i have to deal with it. Reporter this Security Guard who stopped one of the suicide bombers from entering this stadium has had to deal with his fear as well. He couldnt work for weeks. The brussels attacks in march changed that. Translator i had to show solidarity he says. Reporter for french muslims a sense of solidarity hard to come by. A gathering outside of paris, this student had a message. We are here to stand up. Speak up. We are as french as anybody else. Reporter now six months later, france is still in an unsettled state. In fact just this week the french government extended the state of emergency for a third time. U. S. Ambassador jane hartley sees progress here, closer ties to the united states. The relationship between the two countries is stronger than its ever been. There has been a huge amount of not just friendship, but respect. Reporter the lure of the city remains. American writer Seth Sherwood still living his dream job sees it all around him. Paris is still paris . Paris is still paris. The energy is back. The vitality is back. The beauty and history never left. Reporter paris has been through so much. But the city of light has never given in to darkness. Tom brokaw, nbc news, paris. Still paris. Still ahead tonight, the emerging battle over a great symbol of the american wilderness. Of all the wildlife in this country, none is more imposing than the grizzly bear. The population has made a come back in Yellowstone National park and now, there is a proposal to take them off of the endangered species list. But as Anne Thompson reports, some believe that will put them at greater risk. Reporter yellowstone home to americas safari. And its Star Attraction the grizzly bear. He is going to be walking behind the trees right about now. Reporter after four decades on the endangered species list, grizzly bear numbers have gone from 136 to more than 700. So the u. S. Fish and Wildlife Service wants to take the bear off the list. There is just not really more room in the eco system to fit a whole lot more bears in here. Reporter the leader of a federal Government Team that tracks grizzlies. Using radio and gps collars and ariel surveys. From a biological perspective, i would say that the population is secure. Reporter trim presso of earth justice has the doubts. Earth justice successfully sued to keep the bear on the list when government tried to remove it in 2007. Yellowstone is a wild place. And it is a glimpse of the great wild america that once existed. And the grizzly bear embodies all of that. Thats a pretty special thing to to roll the dice on. Reporter critics contend the yellowstone grizzlies are an isolated population and one of the food sources seeds from white bark pine trees have been decimated by climate change. Scientists say bears are adapting. Biologist cary gunther says the menu contains items of all sizes. A log the bear ripped open to get at the ant nest of eggs inside. Reporter then there is the issue of hunting. If the bears are delisted hunting will be banned within the park. But the bears cross an invisible boundary into the greater yellowstone eco system, spanning montana, idaho and wyoming. Each state will have its own hunting plan. If the bear is delisted, does that mean conservation efforts end . No, certainly not. I think grizzly bears in yellowstone are conservation reliant species. Roim an iconic creature of the wild that will still need mans help. Anne thompson, nbc news, yellowstone. When we come back another look at the horse that lived up to his name. If you missed it, the scene at rainy and muddy pimlico in baltimore as they ran the preakness. For a time, it seemed as though nyquist might be on a repeat track for repeat performance after winning the kentucky derby. But the horse, exaggerator had a different plan. He ran a near perfect race and went on to win it ending the possibility of a triple crown for this year. A sad note tonight, the passing of jane little, atlanta symphony bass player we profiled on this broadcast in march. Small in stature, little was praised for colleagues in succeeding in a role reserved for men. She performed for 71 years, setting a world record for longest tenure. Jane little spent her final moments doing what she loved she collapsed on stage during an encore performance of there is no business like show business. She was 87 years old. Next, College Graduation for a man who turned set back into success. In this season of College Graduations, one mans story stood out to us this past week, he has just earned his first bachelors degree in Mechanical Engineering at the age of 54. Its the unique path he took to get to this point thats most impressive. For eight years now, michael vodre spent his days at worcester poly technic institute. And his nights cleaning those same classrooms. Michael used to plaster houses, but when the recession hit, demand dried up. He and his wife joyce lost everything. It was really hard. I couldnt look my kids in the eye and tell them if you do a good job and work hard then you are going to be successful. I couldnt do that. Reporter when michael found the custodian job he realized he would make half as much money. But there was one big perk. Free tuition. I wanted just a glimmer of a chance. To turn my life around and do something that, that i could look back on and say, hey, that was pretty good. Reporter in between classes, he studied in the custodial closet. All i did was go to school, study. Go to work, eat and sleep. I felt i ran tackle for him, really. I kept the distractions away. Reporter their sacrifices paid off. Last weekend, michael walked with his class of 2016 alongside classmates 30 years younger. His graduation cap saying it all. It was a spectacular day. I was walking on air. It was superb. It was it was so much better than i ever imagined it ever would be. Reporter yes it was a little hard to head back to work on monday, but now, he is hunting for a new job. Yeah, with the help, support, encouragement of my fellow classmates and all of my professors, well, they helped rebuild my american dream, you know. And now i dream again. Because of what they have done. Michael is hoping to find work in the Mechanical Engineering field. We were him all the best of luck. Thats nbc nightly news. For this sunday night. Lester holt will be back in. Im kate snow. See you tomorrow at 3 00 on msnbc. For all of us at nbc news. And i heard like a lady screaming for help, call 911. A family trapped in a house fire tonight. We learned that a child did not make it out alive. Im terry mcsweeney. Im peggy bunker. Heavy smoke pouring from the windows, thats what firefighters say they saw when they got to the scene of the deadly fire today. Two others are in the hospital with serious burns. Pete joining us live. Pete, i understand a neighbor saw the flames and tried to help save the family. Reporter yes, that is right. There was a mother in this home, thats what were being told by neighbors that lived in that home