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> good evening. his controversial comments about undocu" property="og:description">
> good evening. his controversial comments about undocu">
headquarters in new york this is "nbc nightly news". reporting tonight, peter alexander. >> good evening. his controversial comments about undocumented immigrants from mexico reignited a debate over immigration. donald trump is taking his blunt talk to the border ground of arizona, the epicenter of this divisive issue. he turned provocative politician ignored pleas to tone down his language. trump insists he has launched a national movement. we begin in phoenix tonight with nbc's katy tur. katy? >> reporter: peter, sit a tense atmosphere out here. protesters are screaming, chanting. trump is speaking to his biggest crowd yet. estimates put it at 5,000 people. >> we will win! >> usa! usa! >> reporter: on the streets of phoenix, the mercury matched the rhetoric. 105 degrees and angry. a hot topic with hot opinions. >> what do you think about his comments on latinos in. >> he talk the truth. he didn't even say anything wrong. and i'm surprised very much that people are upset with him because he tells the truth. >> this guy's an idiot. he is trying to divide people instead of uniting the people. >> reporter: inside a crowd of thousands here to see what donald trump, the presidential candidate has to offer. >> this is absolutely unbelievable. thank you, everybody. >> reporter: here since 4:45 this morning, this woman wanted to be the first in line. why are you such a strong supporter? >> he's a man that says what he says and he doesn't back down. >> reporter: it was originally scheduled for arizona biltmore. they had to move to a bigger venue, the phoenix convention center so more could attend. >> is this good for the republican party, senator? >> i think mr. trump, when he comes to arizona, will find we arizonans cherish our hispanic influence and heritage. >> we are going to make this country so great again. >> trump's first trip to the border state as a candidate and since defining its campaign around immigration. >> i'm the one that burned up the whole situation and the whole mess with immigration and what the mexican government is doing for us. >> reporter: arizona the hotbed in the immigration debate since 2010, when former governor jan brewer signed sb-1070, giving the right to police to stop anyone they think might be undocumented. protesters went head to head with supporters. >> we are here to tell you to go home. we don't need your racist comments. all you're trying to do is get pub listly. >> reporter: the two-day blitz began in l.a. with the billionaire and those who lost loved ones at the hands of undocumented immigrants. peter, this isn't the biggest crowd of the season so far, but it is certainly trump's biggest. he is message is resonating despite or perhaps in spite of the bad press. back to you. >> katy tur on the ground for news arizona tonight. katy thank you. chuck todd will have much more on immigration and the trump factor right here tomorrow morning on "meet the press". overseas now. a massive car bomb attack on a western diplomatic mission in cairo is raising new questions whether isis is expanding its deadly campaign. the violence is being followed closely here in the u.s. and we get more tonight from nbc's kristen welker at the white house. >> reporter: egyptian officials surveyed the devastation in cairo where isis has claimed responsibility for this car bomb attack right in front of the italian consulate. one person died many more wounded. today afghan officials claim a u.s. drone strike killed a top isis leader in afghanistan. u.s. military officials can't confirm that. some doubt it's true. but the pentagon admits that drone strikes in eastern afghanistan killed dozens of suspected isis and taliban militants earlier this week. >> this is like dealing with cancer. you're not lookingings for a one-time cure. you're looking to contain the symptoms. >> reporter: that threat may, in fact be growing. while the air campaign against isis has focused on targets in iraq and syria, u.s. officials say the past few months local versions have sprouted occupy in yemen, afghanistan. >> there is a distinction between on the ground force that isis has in syria and iraq versus aspirational force that exists right now in places like afghanistan and pakistan. >> reporter: this week president obama urged international response to isis. >> in recent weeks we have seen deadly attacks in tunisia, kuwait and egypt's sinai peninsula. i called to unite against this scourge of extremism. >> reporter: while isis is claiming territory in iraq and syria, outside the region it's a localized threat. >> victory is a wrong word to use against isis. we need to contain and mitigate their threat. >> reporter: military experts insist the best strategy to defeat isis is going after the so-called main body of the group, which is in iraq and syria. another goal building up partnerships in many of these regions. and that's a challenge because much of the territory is deeply fractured. peter? >> kristen welker thanks. in vienna with the latest deadline on monday the u.s. iran and other world powers worked into the night to finalize a deal on limiting iran's nuclear power. more from andrea mitchell chief foreign affairs correspondent. >> reporter: late into the night, now for the third weekend in a row, talks got serious. after missing another deadline friday today's secretary kerry and western allies arrived early and stayed late. the negotiations had the feel of musical chairs. kerry with the german french and british ministers. then kerry, the european representative and iran's foreign minister zarif. posing with stacks of paper. a draft of the nuclear agreement. almost done but not there yet. kerry last night. >> i think we have resolved some of the things that were outstanding and we made some progress. >> reporter: after meeting with zarif today, kerry tweeted, still have difficult issues to resolve. one of the last stumbling blocks iran's demand backed by russia to lift a u.n. ban on buying and selling conventional weapons, including ballistic missiles. both sides accused the other of bad faith. both are being second-guessed by critics back home. as zarif took a break on his balance cane in tehran, the ayatollah khomeini said u.s.'s perfect instance of arrogance. prepare yourself for a fight against arrogance. most saw that as a chance to placate hard liners. as the world press waited the agreement has been delayed so long a bridal company who booked their couple for today in period costume, no less were the only distraction, depart anything a pre-world war ii bus. as the negotiators kept at it in overtime. this is the first time the ministers have worked this late since they have been in vienna. a sign of just how hard they're trying and how tough it is. in fact, this is john kerry's longest trip as secretary and his longest negotiation by far. and he's now approaching the record set by some of his legendary predecessors. peter? >> the latest deadline set for monday. andrea thank you. hundreds of thousands of people turned out to see and hear pope francis in paraguay the last stop on his south america tour. throughout the trip the pope delivered a powerful message pushing for economic equality. our report tonight from nbc's anne thompson. >> reporter: for latin america's first pope it's been an emotional homecoming. sworn by children in paraguay reaching out to prisoners inside bolivia's most notorious prison showered with flower petals in ecuador. pope francis drawing the world's attention to three country it rarely sees. >> he speaks our language like us. >> reporter: criticizing what he called an intolerable system that seeks profit at any price. a message he is going to bring to the u.s. in september. >> it will challenge us to think that the economic system is perfect and that he's going to come and tell us no it isn't. that a lot of people are suffering >> reporter: he wore every symbol of welcome. there was no hat he refused. today he met with community leaders, including a gay activist. and events featured latin america's native people to whom he begged forgiveness for the crimes committed by the church in settling this region. for so many here this is more than just a religious event, it's a matter of national pride. ♪ >> reporter: this week politicians tried to draft off the pope's popularity. like john paul francis has the ability to stand apart from the leader he is standing next to i skill he will rely on in the u.s. >> he's got his own talking and he's not going to be swayed by the politic of the united states. that's not going to keep him away from saying what he thinks needs to be said here. >> reporter: a message embraced by many here. >> we have these feelings inside we want to express out. and i think this pope feels the same way. >> reporter: a native son on a mission to change the world. anne thompson, nbc news quito. a wild night in denver. lightning so intense that our denver affiliate kusa was knocked off the air for a few minutes. they had to improvise showing video and footage from ipods. things were back to normal with only a few minor issues. serena williams captured the women's title at wimbledon, becoming the oldest woman ever to win a major tournament. more from nbc's joe fryer. >> reporter: with a hard-fought victory on centre court, she scored a title only she can win, serena slam. >> oh, man, it is really a great feeling. >> reporter: just what is the serena slam? it means she has won the last four pages. u.s. open australian open french open and wimbledon. >> i honestly wouldn't have thought last year after winning the u.s. open i would win the serena slam at all. >> reporter: in her career she has now served up 21 majors in all, one shy of the open era record. >> even when she doesn't play her best she competes better than anybody on the planet. and that's what has gotten her here. that's why she is chasing history >> reporter: we have been watching serena and big sister venus since they were teenage prodigies. today at 33 years old, serena is the oldest woman in tennis's open era to ever win a singles title. to fans she is stronger than ever. >> everything looks like a battle for her and she wins. >> reporter: for all her success, one thing she has not achieved the prestigious grand slam winning all four majors in the same calendar year. the last player to do that stephy graph in 1988. now williams has a chance at the u.s. open in september. she will try to turn her serena slam into a true grand slam. she would tie graf's records for the most 22. >> she realizes she could be the greatest of all time. not only that she should be the greatest of all time. >> reporter: 33 might be ancient in tennis years, burr serena williams appears far from down. they'll be packing the stands later in new york this summer. when "nightly news" returns on this saturday a battle in the west against an epidemic of fires being deliberately set later, after a series of 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fighting the fires themselves but cracking down on those who deliberately set them. nbc's hallie jackson with that story tonight from california. >> reporter: the wildfire in the town burned so fast it destroyed a house every 30 seconds. >> oh, my god. >> this is it. >> reporter: including sue's. >> it was sad. it was very devastating. >> reporter: the person who started this fire was charged with arson. and while the suspect pleaded guilty to lesser charges, more than 1,000 other wildfires in california just last year were set on purpose. blame the record drought, extreme wind spreading the fire as fast as ever. but blazes don't begin by themselves. in california one in every five wildfires starts intentionally set by an arsonist. jennifer hunts them down. not just a fire chief but a law enforcement officer. one of 150 trained at a special state academy in how to trace a fire to its source and figure out whether it was an accident or not. why do you all do it? >> some people do it for monetary gain. some people do it for the thrill. >> they do it because it's a way of asserting themselves in a powerful manner when their lives are powerless. to burn houses to kill people >> reporter: people like the firefighters on engine 57. all five died in the esperanza fire in 2006. the person who set it convicted for murder. arson's consequences sometimes deadly. wildfires always devastating. >> we don't have a water spigot. >> reporter: but here they are determined to rebuild. >> the anger has turned into that want to get our town back to try to get back to the new normal. >> reporter: a community stronger than a single cry, their homes gone but not their hope. hallie jackson, nbc news, san bernardino california. up next superstars on nobody told me to expect it... ...intercourse that's painful due to menopausal changes. it's not likely to go away on its own. so let's do something about it. premarin vaginal cream can help. it provides estrogens to help rebuild vaginal tissue 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small child attacked in a garage. and a 7-year-old scratched inside her family living room. thankfully none of the injuries were life threatening. >> i moved out here because it's more rural. i didn't expect to be kicking coyotes down the street >> reporter: the ongoing drought isn't helping pushing wild animals into populated areas in search of food and water. across the country, in chicago, this fitted with a gps by "national geographic", carefully avoids traffic. and in the concrete jungles of new york city they have been spotted from manhattan to queens. experts save coyotes are changing because society haslett them get too close. >> they are basically changing because we have changed. >> reporter: these days people are more likely to post a picture online than to rush and scare them away. game wardens started a neighborhood coyote watch, warning any kindness to coyotes comes with a risk. gadi there's nothing more romantic than a spontaneous moment. so why pause to take a pill? and 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great renaissance i think for some of the same reasons >> reporter: david brooks saw his first van seven years ago and fell in love. >> vanning can be appreciated by all ages. you're out seeing the country and the sights. >> if i had a van it would be pink and black. >> reporter: the van is a staple of american pop culture. >> i hope we took the right turn back there. >> reporter: remember scooby-doo's mystery machine? or a team's van? or spicoli's van in "fast times at ridgemont high". >> it's not just an event. it's a family reunion. >> reporter: the reunion ends this weekend but the spirit lives on. >> absolutely going to be back next year. >> reporter: as vanners keep rolling down the road. john yang nbc news. nice wheels. that's "nbc nightly news" for this saturday. i'll see you tomorrow morning and back here tonight. for all of us here at >> announcer: the following program is sponsored by st. jude children's research hospital. >> i was just absolutely terrified. >> is this gonna 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