But a new poll shows trump is still leading the way. And clawing her way into the record books. The Young American attempting to become the first woman to conquer one of the deadliest climbs in the world. Right now. 6,000 feet of sheer stone. Im kind of scared. Actually really scared. Shes talking to us from the mountain this morning. How she says shes not stopping until she reaches the top. No. We do say good morning, america. We were saying happy friday eve. This is friday for amy. Its friday for some of us. Just sayin. Yeah, yeah, yeah. Not to rub it in or anything. Not at all. You wouldnt want to do that. It is a very busy thursday morning. We want to get right to the devastation overseas. The massive explosions rocking one of chinas biggest cities. We want to show you the view from above. Drone footage of the aftermath. Look at that. Just incredible, robin. These images emerging of the People Racing to rescue survivors this morning. A Police Officer carrying that man to safety. Thousands forced to flee. And look at this. A row of cars completely burned out. Just the shells remain. Completely covered in debris. Bob woodruff is on the scene for us this morning. Bob, good morning. Reporter good morning, david. You can see the smoke. Toxic chemicals behind me. This morning, the rescuers are desperately searching for the wreckage, 6,000 of them, looking for any survivors of this dave stating blast. This deafening explosion rocking this major city illuminating the night sky. The horror beginning just before 11 00 p. M. A fire at a warehouse storing Hazardous Material in the chinese port city of tianjin. Firefighters rushing in. 30 minutes later. Two massive explosions. This man caught on surveillance at the moment of the impact. At least 44 people dead, 12 of them firefighters. Chaotic scenes as the hundreds of wounded flood hospitals around the city. This morning, the death toll is rising. [ sirens blaring ] rescuers racing against the clock to find survivors. That could still be trapped under all of this debris. This man showed us where he was struck in the back with shrapnel. You were hit by it . On the streets, the damage is stunning. Charred cars. Semi trucks, wheels melted off. Buses decimated. A mile away from the blast, top floors filled with shattered windows. Oh, my god. And this is where the workers were sleeping last night. Let me take you 360 degrees around. This is like ground zero. All of these homes of the Migrant Workers destroyed. Shattered, torn to the ground. Cell phone video from a highrise capturing the massive fireball in the night sky shows just how farreaching the eruption was. It is estimated to be equivalent to 21 tons of dynamite. Could be felt up to six miles away. Monica andrews, an american canadian, living in tianjin, describing the moment of impact. I could just feel my whole building shake. I thought it was an earthquake. Reporter they dont know what caused these explosions. Just a short while ago, we saw another plume of smoke. As for the huge blasts last night, so powerful theyve been registered as earthquakes. David . That is incredible. All right, bob. We appreciate it. And we are thinking of everybody there. Now to the announcement of the former president , jimmy carter. The 90yearold revealing he has cancer. Martha raddatz is in washington with more. Good morning, martha. Reporter president carter has remained so active and so engaged in his humanitarian work, its easy to forget hes 90 years old and more vulnerable to cancer than most of us. Former president jimmy carter making the grave announcement in a statement that he has cancer, and it has spread. Our 39th president saying, recent liver surgery revealed that i have cancer that now is in other parts of my body. Carter did not announce the type of cancer. His father and three siblings all died of pancreatic cancer. Carter has previously said doctors have been monitoring him for the disease for years. He sat down with george just last month. You know, you recently said that you and rosalynn are prepared in a religious and psychological way for what comes next. Thats true. How do you get there . Im not eager to get there. First of all, im just as active as i was 25 or 30, 40 years ago. Ill be 91 in october. My travel capability and my vigor, physical vigor will die down. Ill have more time with rosalynn at home. Make a full life more full. I think so. Its been the best part of my life. Reporter overnight, messages of hope pouring in for the peanut farmer from plains, georgia, turned champion of human rights. President obama releasing a statement, jimmy, youre as resilient as they come. And along with the rest of america, we are rooting for you. We are, indeed. President carter says hell rearrange his busy schedule to undergo treatment and will provide more information when facts are known. Possibly next week. Robin and david . Incredible to see that recent interview with george and just how active he is in his early 90s. Were pulling for him. We are. We turn now to donald trump feeling the heat this morning. Being the frontrunner. The first attack ad of the campaign targeting trump. Showing him praising democrats, including Hillary Clinton. But the newest polls shows nothing seems to be slowing his momentum. Jon karl in Marthas Vineyard this morning where president obama is vacationing. Jon, good morning. Reporter good morning, david. Trump may be facing new attacks this morning. But he continues to defy political gravity. The latest polls show him with a commanding lead in the early primary states. Its the first attack ad against donald trump of the 2016 campaign. In many cases, i probably identify more as a democrat. It just seems that the economy does better under the democrats. Reporter senator rand paul aimed squarely at the frontrunner, using trumps own words against him. The donalds reaction . He swatted away paul in an interview on cnn. Hes failing in the polls. Hes weak on the military. I think hes a far better doctor than a senator. Hes a mess. Theres no question about it. Reporter so far, attacking trump has been a ticket to oblivion. The two that hit him hardest, rick perry and Lindsey Graham are at the bottom of the polls. Teflon trump is still on top. Polls since this controversial performance at last weeks debate, trump holds a commanding lead. In iowa, trump at 22 . With dr. Ben carson in second at 14 . Previous iowa favorite, scott walker, is now in third. While trump fends off his republican rivals, on wednesday, jeb bush lashed out at the democratic frontrunner. You have Hillary Clinton, the secretary of state, dealing with confidential information. With classified information, thinking it was okay to use a private server . Reporter Hillary Clinton has now reportedly turned over that private email server that she refused to turn over for so long to the justice department. That happened yesterday, were told. Meanwhile, you have new polls, david, in New Hampshire and iowa, that showed that hillary is facing a tough challenge from her longshot challenger, bernie sanders. Those numbers tightening. Jon karl in Marthas Vineyard, thanks. Now to the toxic Chemical Spill in colorado. The head of the epa on the scene claiming the water is back to normal. The agency is facing a possible lawsuit. And businesses that rely on the rivers are hurting. Kayna whitworth is in durango for us again this morning. Good morning, kayna. Reporter robin, good morning. Its a little bit eerie, because you look behind me, that river looks vastly different than a week ago. I want to show you something. Just underneath the surface, you can see clearly these toxic heavy metals building up. The epa is testing the water for 27 different met talls, including mercury. The attorneys general of colorado, utah and new mexico, speaking out overnight about the accidental release of 3 million gallons of chemicals into the river. Saying they are considering taking legal action. This is not the end of the story. Damage sometimes doesnt show up for months or even years. The epa does take full responsibility. Reporter this, as epa officials on site and in full damage control mode, showing early tests show vast improvement. The Colorado Department of Public Health now clearing facilities to pull from the amimis river again. The mustard yellow color fading. The danger still present. Im more than 40 miles downstream from the mine where the spill happened seven days ago. It doesnt take much to kick up the toxic heavy metals, like lead and arsenic. Summers are short here. Local businesses that make their living on the river are hurting. Were losing about 25 of our season right now. Reporter while the overall environmental effects unknown, the epa telling abc news, they know the water is flowing to lake powell and they have boats testing it and keeping people out. Lake Powell Holding more than 4 trillion gallons of water, which would dwarf this spill. That is not making people feel better. The epa saying we might not have test results until sunday. Kayna whitworth in colorado this morning. Thanks. We turn now to the young couple about to board a flight for their socalled honeymoon and then it stopped and charged with trying to get to it syria instead. The 20yearold daughter of a war veteran and Police Officer and her new husband being held without bail. Friends stunned and the family is speaking out this morning. Steve osunsami has the story. Reporter good morning, david. That Police Officers department is underlining he had nothing to do with his daughters issues. This morning, were learning more about the young couple federal prosecutors say were ready to swear allegiance and join isil. Investigators say that 20yearold jaelyn young was seen here graduating high school in the top of her class was offering to work for terrorists in syria as a medic. Shes one of my friends. I know the kind of person that she is. And this doesnt make any sense reporter her father is a u. S. Veteran with tours in iraq and afghanistan. He currently works in the Vicksburg Police k9 unit. In a statement, police say the family is devastated and had no knowledge of or involvement in jaelyns plans. Close friends of the family and her new husband are speaking out, too. This is something thats like being hit between the eyes with a 2 by 4. Your eyes are still blinking and your head is still shaking but the pain hasnt set in yet. Thats where they are right now. Reporter dennis hartman, an attorney, says hes known 22yearold muhammad dakhlolla for years. The parents first learned the son was in trouble when the fbi showed up at their door and asked to look into his room. Shocked. Stunned. All but immobilized. They had no idea he was heading to turkey. Reporter they expected their son to start grad school this week. And not sitting in jail. We reached out to lawyers for the couple who had not commented yet. They have not yet entered a plea. Police tell us that the parents of this couple are cooperating with their investigation. David . I cant imagine the shock for these families. Steve osunsami, thanks. Want to get to amy with other breaking headlines. Good morning. Were talking about isis. Its just claimed responsibility for a massive truck bombing at a food market in baghdad. At least 62 people killed. The explosion rocking a shiite neighborhood. 125 people were wounded. Meanwhile, new video as u. S. Fighter jets launched the first air strikes from Southern Turkey against isis targets in neighboring syria. A new phase in the air campaign. Against the terror group. Here at home, millions of drivers will see a big spike in gas prices today. A problem at a refinery in indiana means gas has to be shipped in. From further away and prices could rise by as much as a dollar per gallon in the chicago area. Some terrifying moments overnight during this concert at a minneapolis nightclub. A 30foot section of the ceiling collapsed, sending water pouring on to the floor. About 1,000 people were inside the club. Thankfully, only three people were injured. It is the same club where part of the prince movie purple rain was filmed. In florida, this truck carrying a load of cars burst into flames on interstate 95. The initial fire setting off a series of explosions there. You can hear them there. The truck driver managed to unhitch his cab. He escaped without getting hurt. And finally, forget the breakfast of champions. How about the beer of champions . Or you could have a boozy breakfast. Wheaties is teaming up with a brewery in minnesota to make this new beer, called hefewheaties. Made from the wheat, just like the german brew. So far its only been sold in minnesota. No word if any famous athletes will grace the can. This is my two cents. Strahan with the whole germany connection. And i know you like beer . So when i show up here and im talking well, i just had wheaties this morning. Whats the problem . I dont know what happened. Can you bring me a wheaties, too . I got you. Now to the latest round in deflategate. Tom brady and Roger Goodell facing off in federal court. The judge grilling both sides. Getting the league to admit there is no socalled smoking gun tying brady to the deflated footballs. Ryan smith has been tracking this story from the beginning. Reporter good morning, robin. Deflategate going from the field to the courtroom. Commissioner Roger Goodell and tom brady letting their lawyers do the talking, while the judge pushing for a settlement, probing the nfl with tough questions about the evidence against brady and asking bradys team about why the star destroyed his phone. This morning, Quarterback Tom Brady and nfl commissioner Roger Goodell, locked in battle over the stars fourgame suspension for deflategate. The heavyweight matchup taking place in new york court. While tom brady was greeted by camera clicks and words of support. Nfl chief Roger Goodell, had a different sort of welcome. Judge Richard Berman hearing the appeal filed by brady and the nfl players union, saying hes still mulling legal issues in the case but admitting hes having trouble finding evidence brady was part of a conspiracy to deflate footballs, saying, imanswer not sure where the gate comes from. And grilling nfl lawyers. Asking, is there any direct evidence linking of brady to deflating . The league saying there may not be a smoke gun, but there is evidence of culpability. Judge berman attacked the nfl today and tried to soften up the league in an effort to see if the league is willing to settle. Those talks ongoing. Reporter the judge, testing bradys side, too. Asking the fourtime super bowl champions lawyers why brady destroyed his cell phone during the investigation. His lawyer claiming he often gets new phones to protect his privacy but conceding it could have been done in a different way. Brady is eligible to play in the first preseason game today. But if his suspension is upheld, he wont play in the regular season until october 18th. Now, if both sides cant reach a settle inmement in the next six, theyre back in court next wednesday to argue their case for another round of an already bruising fight. All right. Ryan. In your report, you had those courtroom stretches and michael is over in the social square now. Those courtroom sketches of tom brady are drawing a bit of attention, wouldnt you say . Just a little bit. No cameras were allowed in the courtroom. We relied on sketch artist Jane Rosenberg to do those lightning fast drawings of brady in the courtroom. That might explain why tom brady looked like this. It was a twitter meme touchdown no pun intended for more than 130,000 mentions in just 24 hours. Heres brady compared to lurch from the addams family. I see the resemblance. Here he is shown off the field in this famous shot from thriller. I thought that was michael jackson. And the more popular one, and superimposed in the painting the scream. Probably how brady felt when he saw the sketch. The artist, jane, came back. Apologized to fans for not making brady as handsome as he really is. She truly is an accomplished artist. Maybe not her best day. Maybe she went for the zombie look. Right. I think tom brady has bigger issues than how he looks. Its everywhere online. This morning, everybody is talking about it. Its funny. Mt. Rushmore. Did you see that one . Just add it to the list. All right. We got some strong storms, too. Look at the hail. You brought the hail back. I promised you, amy. Northern plains. Northern great lakes. Thats where we saw the biggest hail and bigger than baseballsized. Concentrated. More than 50 severe storm reports. Most in northwestern minnesota. That will move to the east today. The heat in bakersfield. Bringing you a dust devil. And one composite shot of the perseid meteor shower. Had to get that out there. Beautiful. Hello. The forecast for today you can see the marine layer clouds. Slow sunshine, breezy, and our last mild day as the opp and we have much more ahead this thursday morning. Real estate wars. The luxury realtors allegedly targeted by a competitor who tried to blackmail them. For nearly a Million Dollars. And distracted lifeguards. Our team on the lookout. From social media to sleep. It could be taking your eyes off the quid kids. We have an optical test for you at home with paula faris next. Good morning, america. With paula faris next. Hurry in to the lowes Summer Savings event for great deals, like 5 to 20 off paint and primer, select stain and sealant, and resurfacers, plus light bulbs only 4. 98 dont miss out on summers biggest savings at lowes. My opis slowing my insides to a crawl. Millions of people are estimated to suffer from opioidinduced constipation, oic, caused by the opioids they use to manage chronic pain. Oic is a different type of constipation. Opioids block pain signals, but they can also block activity in the bowel. Im really struggling to find relief. Ready to paint a different picture . Yes talk to your doctor about oic and prescription treatment options. I can do that someim here to help embway dothink differently. Flavor. You know that sandwich you always get . I can make it even better. You ever try this toasted with monterrey cheddar . 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