abc's devin dwyer has the story. >> reporter: tonight a so-called trump tsunami still sweeping iowa. >> i'm not supporting. i'm talking about him. >> reporter: the gop's helicopter spotted above the fair for a second day after that dramatic arrival saturday. our martha raddatz exclusively tagging along. >> you know where we were four years ago, the people at the bottom of the polls didn't do so >> who was here? >> michele bachmann and rick santorum. they're not me. >> reporter: tonight, trump getting more serious and specific about his policies. >> we're building a wall it's going to be strong. >> reporter: trump says he would force mexico to foot the bill for his border wall. by hiking fees on visas. he tripled the number of immigration officers and end birthright citizenship which he calls the biggest magnet for illegal immigration. it's full steam ahead for trump who's willing to spend more of his own money on campaign than >> i would do that if i had to. >> reporter: trump still way ahead since that first debate, while jeb bush has taken a hit, down to fourth place. ben carson su

>> devin dwyer covering it off. thank you. >>> we turn overseas now to europe's refugee crisis. tonight, the human toll mounting. hundreds of people crossing borders again this weekend, taking desperate risks for a better life. abc's chief foreign correspondent terry moran with some of those families tonight. >> reporter: razor wire failed to hold back the tide of humanity flooding europe. here, little children coming into hungary, 700 in one day. while the police here holler in futility, "go back!" hundreds of thousands of people are now on the move. a river of refugees flowing from war and terror in syria and beyond. through turkey, greece, macedonia and serbia in the balkans. into hungary, then austria, germany and the rest of europe. they are risking everything. in austria, authorities now say 71 people, including children, died in that abandoned truck. four men arrested for trafficking, appeared today in court. and still they come. we met xainab walking with her boy on the road about a mile from the border. you want a beautiful life? >> i want a beautiful life for my son. >

i love it. >> reporter: devin dwyer, abc news washington. >>> a state of emergency in colorado after toxic sludge pilled out of an abandoned mine into a river. the pollution streps for 100 miles and threatening resort communities in colorado and new mexico and utah and maybe even the grand canyon. the spill was caused by the environmental protection agency as it tried to clean up the mine. >> we misjudged. and this is something that i'm owning up to. >> the amount of sludge is now believed to be 3 million gallons, three times as much as first thought. spill could end up going through the grand canyon. >>> here's a look at your weather. heavy rain in much of the eastern third of the country. rain from denver down through new mexico. expect showers in the northwest. >> a high of 3 in washington, 89 in miami. hid he 90ss in new orleans and memphis. triple digits in dallas and phoenix. 80s in the pacific northwest. >>> the san diego zoo has helped straighten out a flamingo born with crooked legs. when he hatched, staff at the zoo knew something was off about the flamingo named pink floyd

here's abc's devin dwyer. >> my goodness. >> reporter: trouble for hillary clinton in a state where she knows defeat. >> barack obama will win the caucuses here in iowa. >> reporter: eight years after failing to win iowa, a new poll of democrats shows her slipping losing a third of her support since may. her lead it's lowest ever, sust seven points lady of senator bernie sanders. >> this is not anti-hillary clinton. this is pro bernie sanders and pro a message that says enough is enough. >> reporter: sanders is leading? clinton in new hampshire. energizing liberals particularly younger voters and he's not the only clinton alternative stirring excitement. vcht joe biden sacrifices a jamboree of delaware democrats saturday building speculation he may get in the race. the new iowa poll shows a door could be open for biden. 14% of iowa democrats want biden as their nominee. 13% remain undecided. >> very good magazine this week. >> reporter: meanwhile a stunning turn around for gop front-runner donald trump. three months ago 63% of republicans viewed him unfavorably. now a complete flip. at

here's abc's devin dwyer. >> reporter: it's the summer of the political wild card. vice president joe biden is stirring up intrigue among democrats after that secret political meeting with popular star senator elizabeth warren. warren is an icon among liberals. an endorsement eagerly sought by all the democratic presidential candidates. so far, she's been cool to frontrunner hillary clinton, telling wbz friday she thinks the race is wide open. >> i want to see all the presidential candidates lay out where they stand on key issues. >> reporter: the meeting with warren, whose stamp of approval could catapult biden, is the strongest sign yet he's getting serious about the 2016 race. while clinton vacations in the hamptons, seen in this dailymail.com photo, biden supporters see an opening in the polls. in a recent quinnipiac poll, only 37% say they trust hillary clinton, while 58% say they would trust joe biden. biden, also said to be privately grappling with the wishes of his late son beau, who recently died of cancer. >> i know beau wanted his dad to be president. i k

with more, here's abc's devin dwyer. ♪ >> reporter: no apologies from donald trump. >> so, no apologieso megyn kelly? you don't think you crossed the line there? >> no, not at all! i said -- look, she asked me a very nasty question. i have nothing against megyn kelly, but she asked me a very, very nasty question. >> reporter: gop front-runner speaking on abc's "this week with george stephanopoulos," addressing the controversy following last week's republican debate. >> you've called women you don't like fat pigs, dogs, slobs. >> i've been very nice to you, although i could probably maybe not be, but i wouldn't do that. >> reporter: trump didn't like that line of questioning, attacking fox news moderator megyn kelly during an interview on cnn friday. >> you know, you could see there was blood coming out of her eyes, blood coming out of her, wherever. >> reporter: some believe trump was implying that kelly was hormonal. trump insisted that's not at all what he meant. >> i was referring to nose, ears. they're very common statements, and only a deviant would think of what people said. some

devin dwyer is in iowa covering it all. >> reporter: when campaigns collide.esidential front-runners two different styles. hillary clinton arriving at the iowa state fair. the democrat stopping to pet animals and talk. >> the republican leader landing in grandiose style, donald trump using a private helicopter to touchdown near the fairground. does any bed want to take a ride? and give free ride to a group of kids. both quickly facing tough questions. trump on immigration? >> nobody is going through my wall. trump build walls. i build walls. >> for clinton controversy over her e-mail server. >> i never sent classified material on my e-mail. and i never received any. >> beth candidates taking aim at their rivals. clinton charging at jeb bush. >> i find it south whme what cu that jeb bush is doubling down on defending his brother's actions in iraq. >> trump at well nearly everyone. >> hillary clinton was the single worst secretary of state in the history of the country. jeb bush is a puppet to his donors. no question. when people look at scott walker his state h

devin dwyer, abc news. kellye: coming up, your choice of vacations says more about you than you think. popular destinations revealing something about your personality. and getting back to school, getting a major boost. the wizards front man giving back. first, just coming out, the national icon heading for the district. the library of congress gets ready to celebrate. kellye: big names headed to d.c. for the national book festival the 175aldrin among bullets and authors attending. the library of congress hosts the free event every year. it will be september 5 at the washington convention center. a major post getting kids back-to-school, wizards star john wall making a personal push to start the year right. we have more on why this is so near and dear to his heart. wizards guard john had almost 800 assist/year. today, he had a whole bunch kids assisting 300 local get ready for the opening of the school year, giving out school supplies, backpacks, and words of wisdom at the boys and girls club in southeast wa

devin dwyer, the white house. >>> harry reid has thrown his full support behind the nuclear agreement with iran. the nevada senator says it is the best path to stop iran from getting a nuclear weapon. his support will make it difficult for upons to muster the veto proof numbers needed in the senate. >>> four days after telling the world that cancer has spread to his brain, jimmy carter was back at sunday school. he's taught as his hometown church for more than 30 years. bazi kanani has more. >> in the tiny town of plains, georgia, the population nearly doubled. hundreds lined up outside the baptist church for former president jimmy carter's first sunday school talk since he revealed on thursday his battle with brain cancer. >> when i heard the announcement, i actually cried. >> why don't you tell me what state you're from. >> d.c. >> i used to live there. >> president carter told the crowd he may be finished with radiation and his treatment will now be done within iv medications. then turn to his tching for the week on love. citing his 69-year marriage to rose lynn carter. >> but i wo

devin dwyer reports. ♪ sweet home alabama >> while donald trump riels up republicans. >> unbelievableg vice president joe biden is adding intrigue to the democratic race. biden interrupting his family vacation in delaware saturday for a secret last-minute trip to washington. he met privately with popular liberal senator elizabeth warren of massachusetts. the two talked politics and biden's likely possible bid for president. a decision he plans to make by the end of the summer. >> there's a chance but i haven't made up my mind about that. >> warren was heavily lobbied to run for the white house herself. now her endorsement is sought by all the democratic candidates. so far she hasn't decided. >> i want to see all of the presidential candidates lay out where they stand on key issues. >> this morning front rubber hillary clinton is off the campaign trail and on vacation. seen here friday in the hamptons with her husband bill and their dogs on a photo on daily mail.com. it's hard to imagine wanting to leave a reportedly $50,000 a week luxury rental home, but clinton's campaign said she's

devin dwyer has details. >> reporter: a surprise sit down. new signs vice president joe biden is nearing a decision on a run for president. over the weekend, biden met with massachusetts senator elizabeth warren, a last-minute huddle fueling speculation he was appealing for support. current candidate martin o'malley says the more the merrier. >> he's a very, very good and descent man and nice to have one more lifelong democrat in the race. >> and abc news obtained a memo from a grass roots group draft biden doesn't ask for money but instead urges democrats to keep an open mind about a biden candidacy. today clemsan clemson supporter against a biden run. >> i don't think he gets in. i think the personal situation he's going through and the fact that hillary clinton is way ahead, i don't think he gets in. >> donald trump weighs in on the vice president. >> would he be a tougher opponent than hilary? >> i don't think so. >> polls show trump dominating the gop rivals using issues like illegal immigration to electrify supporters. so far trump hasn

devin dwyer, thank you. >>> and we move now to the ten-year anniversary of hurricane katrina. on august 29th, 2005, katrina slammed into new orleans. the vicious storm left parts of that city under water and now ten years later, some neighborhoods of the crescent city are still rebuilding, however, others are back, and they are better than ever. abc's bob woodruff is there with more. good morning, bob. >> reporter: good morning, paula. there will be a street parade throughout this entire city. it's really just a reminder of what happened ten years ago, and a celebration of how this city has recovered. ten years ago, hurricane katrina completely ripping through the gulf. new orleans was right in its path with wind and then water bursting through the levees, first burying the ninth ward. from the helicopters up above, to the streets below, the city to the streets below, the city was changed. today, new orleans is back. the economy now is booming. katrina is considered the single most catastrophic natural disaster in u.s. history, $135 billion in damage, more than 1800 dead. the

devin dwyer with the polls. >> reporter: tonight, trouble for hillary clinton in a state where she knows defeat. eight years after she failed to win iowa, a new poll of democrats shows clinton slipping, losing a third of her support since may. her lead now its lowest ever, just seven points ahead of senator bernie sanders. >> this is not anti-hillary clinton. this is pro-bernie sanders, and pro a message that says enough is enough. >> reporter: sanders is leading clinton in new hampshire, energizing liberals, particularly younger voters. and he's not the only clinton alternative stirring excitement. vice president joe biden surprises a jamboree of delaware democrats saturday, building speculation he may get in the race. the new iowa poll shows a door could be open for biden. 14% of iowa democrats want biden as their nominee. 13% remain undecided. >> very good magazine this week. >> reporter: meanwhile, a stunning turnaround in iowa for gop frontrunner donald trump. three months ago, 63% of republicans viewed him unfavorably. now, a complete flip. at the back of the pack, new jersey gover

abc's devin dwyer joins us from the white house. devin, clinton was supposed to be on vacation. >> reporter: that's right, cecilia. hillary clinton planned to spend the end of august relaxing at her exclusive vacation rental in the hamptons but her campaign tells me tonight she'll barely with there next week. she's hitting the trail for campaign events in key battleground states. this as that e-mail controversy swirls. her aids though insisted she's made no schedule adjustments because of it. >> that controversy not letting up and it's starting to show in her poll numbers. >> reporter: look at the cnn poll from this week. 56 percent say mrs. clinton did something wrong with her e-mail. that's up from 51% in march. it's troubling to the clinton campaign. also a possible opening for vice-president joe biden. biden interrupting his vacation in delaware for a secret trip to washington for a private political meeting. he's getting serious. >> devin, thank you. >>> next tonight, the desperate battle against raging wildfires, one of the fir

. >> abc's devin dwyer from des moines. >>> overseas to china where rescue crews are scrambling to find survivors in tianjin, that death toll is up to at least 112, nearly a hundred more remain missing. most of them firefighters. chinese officials say deadly sodium cyanide stormed there, may have been 70 times allowed amount. >>> this time in the skies over indonesia, a plane packed with passengers suddenly disappeared from radar, the indonesian airplane flying with a troubled safety record. tonight, the search for that plane and those passengers, abc's jennifer eccleston joins us now from london. >> reporter: tom, it's a routine commuter flight. just over 170 miles in papua, eastern indonesia. but just ten minutes before touch down, the plane vanished. the flight was heading into the airport in oksibil. 54 people on board, 5 of them children. air traffic control saying there was no distress call. but villagers telling local police, a low-flying plane hit the side of mountain. weather, also a key factor. with heavy rain, strong winds and fog. it's a harrowing wait for the family of thos

devin dwyer has the story. >> reporter: it's the summer of the political wild card. tonight, vice president joe biden is stirring up intrigue among democrats after that secret political meeting with populist star senator elizabeth warren. warren is an icon among liberals. an endorsement eagerly sought by all the democratic presidential candidates. so far, she's been cool to frontrunner hillary clinton, telling wbz friday she thinks the race is wide open. >> i want to see all the presidential candidates lay out where they stand on key issues. >> reporter: the meeting with warren, whose stamp of approval could catapult biden, is the strongest sign yet he's getting serious about the 2016 race. while clinton vacations in the hamptons, seen in this dailymail.com photo, biden supporters see an opening in the polls. in a recent quinnipiac poll, only 37% say they trust hillary clinton, while 58% say they would trust joe biden. biden, also said to be privately grappling with the wishes of his late son beau, who recently died of cancer. >> i know beau wanted his dad to be pres

let's get right to our devin dwyer, with more on the comments at the center of this firestorm. >> reporter: tonight, donald trump upping the ante, intensifying attacks on fox's megyn kelly. >> she starts asking me all sorts of ridiculous questions. and, you know, you could see there was blood coming out of her eyes, blood coming out of her wherever. >> reporter: apparent payback in an interview with cnn tonight for tough questions at thursday's republican debate. >> you've called women you don't like fat pigs, dogs, slobs -- >> reporter: trump's latest comments are triggering new outrage. some believing he was referring to female hormones. >> he's not invited. i'm sorry. >> reporter: the backlash was swift. a conservative summit in atlanta dumping trump from the lineup. >> it's really weak and pathetic to take a tough question from a journalist and assume she's having her period, and that's why she asked you a tough question. >> reporter: trump has tried to clarify, tweeting, "you could see blood coming out of her wherever -- nose." later adding "political correctness is killing our countr

abc's devin dwyer is right there covering it all. >> reporter: donald trump arrived at the iowa state fair like a billionaire would. the only presidential candidate to arrive in a helicopter. a never before seen iowa attraction. >> who wants to go first? >> reporter: trump announcing free flights for kids as he promised to unveil new specifics tomorrow on his signature issue of immigration. >> you are going to love me in terms of immigration and illegal immigration. we're building a wall, it's going to be a wall that is not -- nobody's going through my wall, trump builds walls, i build walls. >> he's bold. speaks his mind. >> reporter: the republican front-runner's grand entrance captivating iowans. mobs flocking to the golf cart taking trump to the famous 600-pound butter cow. hillary clinton was also there, though she and trump never crossed paths. >> how are you, bill? >> reporter: the democratic front-runner who lost iowa in 2008 back at it, doing what iowans do. petting the animals, sampling the pork. addressing, sort of, the controversy about an fbi investigation of her private

devin dwyer has more. >> reporter: under fire and firing back. tonight, donald trump standing by insults he hurled at fox debate moderator megyn kelly. >> so, no apologies to megyn kelly? >> no, not at all. i said -- look, she asked me a very nasty question. i have nothing against megyn kelly, but she asked me a very, very nasty question. >> reporter: on abc's "this week," trump defending his comments that set off a firestorm. >> blood coming out of her wherever. >> reporter: insisting to george he did not mean to imply anything inappropriate. >> i was referring to nose, ears. they're very common statements. and only a deviant would think of what people said. >> reporter: the republican front-runner, with a recent history of controversial statements about mexican immigrants and american p.o.w.s, now arguing he has no problem with women. >> i've always had a great relationship to the women. women are tremendous. >> reporter: the woman at the center of it all -- >> you've called women you don't like fat pigs, dogs, slobs. >> reporter: tonight for t

here's devin dwyer. >> reporter: under fire and firing back, donald trump standing by insults he hurled at fox debate moderator megyn kelly. >> no apologies to megyn kelly? >> no, not at all. she asked me a very nasty question. i have nothing against her. but she asked me a nasty question. >> reporter: on abc's "this week," trump defending his comments that set off a firestorm. >> blood coming out of her wherever. >> reporter: insisting he didn't mean to imply anything inappropriate. >> i was referring to nose, ears. they're very common statements. only a deviant would think of what people said. >> reporter: the republican front-runner with a recent history of controversial comments about immigrants and p.o.w.s, now arguing he has no problem with women. >> i have always had a great relationship to the women. women are tremendous. >> reporter: the woman at the center of it all. >> you have called women you don't like fat pigs, dogs, slobs. >> reporter: for the first time, her defending her treatment of trump. >> he felt attacked. it wasn't an attack. it was a fair question. but i get it.

devin dwyer, abc news, washington. >>> we'd like to introduce you to the luckiest man of the week., he found 20 bucks lying on the street. he decided to use the money to buy two california state lottery scratchoff tickets and one of them had the $1 million jackpot. for now, tang is going to put most of the money in savings, but not all of it. >> we've got to have a little celebration dinner kind of thing, right? mom can definitely look forward to like a new car or something. >> you know what? i'm glad you remembered mom. a lot of people forget mom when they make it b. tang thinks maybe now he'll leave $20 bills lying on the ground himself. by the way, he hadn't played the lottery in a decade. he remembered mom and he's going to pay it forward by putting $20 bills around. >> karma on your side and you may win the lottery. >> there you go. >> one of the new venues for next year's olympics is now open for business. there's still some finishing touches to be done but the mayor of rio de janiero opened the olympic bmx center this weekend and he even took a spin around the bicycle track

abc's devin dwyer is in des moines. >> reporter: the so-called trump tsunami still sweeping iowa. >> there hasn't been nobody like him. >> he doesn't pull any punches. i like that. >> i'm not supporting. but i'm talking about him. >> reporter: the gop's front-runner's private helicopter spotted above the fair for a second day after that dramatic arrival saturday and free rides for kids. our martha raddatz exclusively tagging along. >> but you know where we were four years ago here, the people at the bottom of the polls didn't eventually do so well. >> who was here? who was? >> well, you had michele bachmann in the iowa straw poll, but rick santorum took it. >> but they're not me. they're not me. >> reporter: trump getting more serious and specific about his policies. >> we're building a wall, it's going to be strong. >> reporter: in his first policy paper on immigration, trump says he'd force mexico to foot the bill for his border wall by steeply hiking fees on u.s. visas for mexicans. he'd triple the number of immigration officers and end birthright citizenship, which he calls the b

devin dwyer has more on the controversial comment making headlines. uninvited.the list at a summit with republican candidates. >> i dent want my daughter in the room with donald trump tomorrow night. he is not invited. >> reporter: eric eriksson taking the stage saturday morning to explain why he didn't want the gop front-runner to show up. it all revolves around the comment trump made about megyn kelly during an interview on cnn friday. >> you could see there was blood coming out of her eyes. blood coming out of her, wherever. >> critics pounced saying trump was attacking kelly because she is a woman. seeming to suggest she was hormonal. the state local trying to clarify, saying wherever meant her nose. some at the event he was banned from aren't big it. >> you can be upself. if you want to be the leader of the free world. >> kelly questioned trump about his trooment of women. >> you call women you don't like, fat pigs, dogs, slobs. >> trump's fellow gop candidates quickly respond to the controversy. carly fiorina on twitter saying, mr. trump there is no excuse

abc's devin dwyer is at the white house. devin, good morning to you. >> reporter: hey, good morning, cecilia. you know, vice president joe biden has spent much of the past two weeks trying to finalize a decision on whether to run for the white house, but now word he's consulted with one of the most influential democrats in the party. sweet home alabama >> reporter: while donald trump riles up republicans -- >> unbelievable. >> reporter: -- this morning vice president joe biden is adding intrigue to the democratic race. biden interrupting his family vacation in delaware saturday for a secret last-minute trip to washington. biden met privately with popular liberal senator elizabeth warren of massachusetts. sources say the two talked politics and likely biden's possible bid for president, a decision he plans to make by the end of the summer. >> there's a chance, but i haven't made up my mind about that. >> reporter: an icon on the left warren was heavily lobbied to run for the white house herself. now her endorsement is sought b

devin dwyer is there. devin, good morning. devin, good morning. >> reporter: good morning, dan. the smell of fried food is in the air here. it's a tradition that draws more than 1 million people every year. many in search of the culinary delights. this year's special attraction? a horde of presidential candidates. >> one, two, three, perfect. >> reporter: like livestock competing for a 4-h ribbon, the presidential candidates are showing off at the iowa state fair. the 2016 hopefuls doing what iowans do. >> pork chop on a stick. >> reporter: flipping pork. casting ballots with corn kernels. taking in a tractor competition. >> we have serious, serious problems. >> reporter: they're stumping on the famous soap box stage and snapping selfies with a 600-pound butter cow. candidates loosening their belts. corn in a cup. brisket in a bowl. >> the lime brings out the tang in the corn. >> reporter: jeb bush threw a few fastballs and enjoyed a cold beer before skewering hillary clinton about the private e-mail server. >> she should come clean. this is an issue, not a distraction. for sure

abc news reporter devin dwyer has more on the latest controversial comment-making headlines. >> uninvited. donald trump finding himself kicked off the list at a major summit with republican candidates. >> i don't want my daughter in the room with donald trump tomorrow night so he's not invited. i'm sorry. >> organizer eric erickson taking the stage saturday morning to explain why he didn't want the gop frontrunner to show up. >> it all esolves around this comment he made about mod traitor from fox megyn kelly on cnn friday >> you could see there was blood coming out of her eyes, blood coming out of her wherever. >> critics immediately pounced, saying trump was attacking kelly because she was a woman. seeming to suggest she was hormonal. he tried to clarify saying wherever meant her nose. some conservative woman at the event he was band from aren't buying it. >> you can be upset with the situation but if you want to be leader of the free world you have to practice diplomacy. >> kelly questioned him about his treatment of women. >> you call women you don't like fat pigs, blobs, dogs. >> i h