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campaign against him. does the president being here help you or hurt you? >> we'll see. i don't know that it matters one way or the other. the people of texas want to decide this on their own terms, on our own terms. >> reporter: he's up against a well known republican incumbent. >> senator ted cruz. >> reporter: in a state president trump won by nine points. >> do we agree with beto o'rourke that we should impeach president trump? >> reporter: cruz and mr. trump weren't always so close. >> donald, you're a snifflinge .

>> reporter: president trump insisted today the two had buried the hatchet. >> he's not lyin' ted any more. he'sut >> reporter: but all those insults took a toll. the houston chronicle endorsed o'rourke friday despite backing cruz in 2012. the paper cited o'rourke's command much issues that matter to the state and faulted cruz's, quote, repellent personality. o'rourke's personality and his refusal to move to the right have made him a progressive icon. >> even school teachers, we will support you. we'll make sure that you're paid a living wage. >> reporter: progressives, however, rarely prevail in texas. in fact, the last time a democrat won in

1994, jeff. 24 years ago. >> all right. more on texas poll texas with you in just mo. the battle ground tracker s were heldtoda crnd win 226 seats, eight more than they need to retake the house. however, the margin of error is 14 seats which means rep in harris county will play a huge role in this election. polls say that nine-term republican john culver son is in a dead heat with democratic challenger lizzy fletcher. today we spoke with both candidates and voters. >> this is a dividing street for the congressional district. >> reporter: richard murry has been teaching texas politics for half a century. he took us on a tour of the texas 7th, a district that has only elected republicans for 50 years. now, it's a toss-up. is the 7th a good place to use as a lens to look at the rest of the country? >> yes.

>> this district was for a long time largely white, middle to upper middle class. now it's less than half white. about a third are hispanic, 14% african-american, 11%babl about t's a lot. >> yes. >> the texas 7 has been first won by the gop since a his race here in 1966. >> john culver son is the right guy at the right place at the right time for houston and for texas. >> at 62, john cull ber son, the 18 year incumbent who serves in the powerful house appropriations committee has never faced a challenge this difficult. >> women feel like our voices aren't being heard. >> a 43-year-old well financed attorney named lidsy fletcher. >> no one thinks government is the answer. but they don't think government is the problem. what they really want is for our elected representatives in washington and elsewhere to actually work together to solve

problems. >> the big issues in this district include health care. >> it's a terrible idea to have a ien end ther.>> h fletcher wants to i am above it. immigration, both want better security along the border but culver son wants to fund the wall and fletcher does not. >> we have to deal with our policy overall. >> and flood control. hurricane harvey was devastating here. thousands of homes ruined. >> the state loaned us the money. they didn't even give us the money. >> joanie weiner is supporting fletcher. >> i'm mad at all the government officials, at all the incumbents who are taking us for granted. >> bran difficult's house was also wrecked. she said the incumbent culver son was there for her. yoo do you think discussions taking place are helpful or that it's just sending people further apart? >> i think it's sending people farther apart. john culver son is on the house. hasuredun and we

can't change horses in the middle of the race. >> the work i've done since i've been on the appropriations committee is well documented and shows i made sure the flood control district got every dollar they asked for. >> by the way, i should mention the republican john culver ss t that was prescheduled, was scheduled months ago. but what's happening here is happening across the country, and every candidate is trying to calibrate how they're going to engau engage with or not with the president. >> if you think independent voters are key like culver son, you are going to keep your distance from president trump. but if like ted cruz you think the key is turning out the base, there are few people like president trump who can bring thousands of people out 12 hours a 4ed of time. >> as we are seeing here. nancy, good to see you here. next, how a

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sunday, police raided the company operating the river rafting tour. police seized computers and files from the business. authorities are investigating whether it had the proper license. heavy rains and flooding have battered parts of central america, including costa rica over the past month. there was a flood alert in effect in the area of saturday's accident, prompting some tour operators to stay off the water. >> should we have gone out that day? no, we shouldn't have. >> reporter: jeff went rafrting on the same river last month when all three carrying his group overturned tossing him into the rapids. >> if i had been knocked out, it probably would have been all over for me. fortunately the bruises i got were basically my lower body. >> reporter: costa rica's president has called for a full investigation, but tour operators there say oversight is limited. jeff? >> chris, thanks very much. still ahead here tonight, a

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we end here tonight with a pair of wounded warriors recovering together in texas. here's omar villafranca. >> reporter: the bond between these two soldiers goes beyond the call of duty. >> i literally put my whole life on this dog. >> reporter: army specialist and his bomb sniffing dog alex have spent three years together on countless missions. most recently, a tour in afghanistan. >> we find iuds, bombs. these dogs put themselves on the "frontline" and make sure no one gets hurt behind them. >> reporter: it was on their last mission in august that their lives were changed forever. while on a foot patrol, a suicide bomb eer attacked. >> he laid down next to me. >> reporter: what did you do? >> i saw the blood. i tried to top it with combat gauze and wrapped it up real

quick. >> reporter: the two were air lifted out of afghanistan and brought together in weeks until they were healthy enough to see each other again. what was it like? >> i don't think i was ready to see him with three legs. >> reporter: for their service and sacrifice, he was awarded a purple heart. alex received the canine equivalent, the purple paw. our cameras were there when he and alex started physical therapy together. >> i want to be next to my dog. i want to walk him out, go running with him, do all the stuff we used to do. >> reporter: and the two love each other so much, alec adopted his former baltimore l buddy. his last mission? to never walk alone. omar villafranca, cbs news, san antonio, texas. >> that is the overnight news for this tuesday. for some of you, the news continues. for others, check back later for the morning news and "cbs this morning."

from houston, texas, i'm jeff glor. >> announcer: this is the "cbs overnight news." >> hi, everyone, and welcome to the overnight news. i'm dimarco morg emarco morgan. step-by-step a caravan of central americans are pushing baby carriages and sleeping in the streets along the way. although they have a thousand miles to go, their footsteps are rattling nerves all the way to washington. president trump is threatening countries for not stopping the caravan, and says he'll send the u.s. military to seal the border. adriana diaz is with the migrants. >> reporter: this is a pit stop on a punishing journey to the u.s. border and it's still just the beginning.rom honras, emala continue to make their way north.

fleeing poverty, persecution and gang viar is an estimated 7200 migrants and more are expected to join tomorrow, potentially pushing the number past 10,000. they started their journey from honduras, continued through guatemala and into southern mexico. they're nearly 1,000 miles from the nearest u.s. border crossing. a similar exodus in april with 1500 migrants reached the u.s. border, 250 applied for asylum. only three so far have received it. you're only wearing sandals. battling 100-degree heat and exhaustion and thin soles, jessica flores brought her strongest child with her. she left her four others in honduras. [ speaking foreign language ]hi [ eaage fath

farther she goes the harder it is to know her children are so far from her. they continue in open defiance of the u.s. government. foreign >> reporter: today the u.s. embassy in honduras released this video urging people to turn back or face detention. but the caravan is rumbling forward. we first saw sergio yesterday as the caravan reached its first major city in mexico. we found him again today on the way out. he is paralyzed and looking for work, and better doctors in the u.s. how has this journey been in a wheelchair? [ speaking foreign language ] >> reporter: he says complicated, complicated. >> it's two weeks to go to midterm election ands immigration is one of the hot button issues. president trump is making it a rallying cry on the campaign lly inouston. >>eporter: on his way to texas, president trump repeated the unsubstantiated claim he first made on twitter this morning, that criminalsow middl mixed in with migrants trying to

cross the southern border in caravans. >> you're going to find ms-13, you're going to find middle eastern. you're going to find everything. and guess what? we're not allowing them in our country. >> reporter: with midterm elections two weeks away and the republicans in jeopardy of losing the house, president trump has ramped up the rhetoric on immigration, a tactic he also used during the 2016 campaign. >> democrats believe our country should be a sanctuary for criminal aliens. >> reporter: several republicans have used the president's strategy to attack their democratic opponents. >> happy anniversary, joe. >> mexico joe. >> reporter: but in washington? >> mccaskill joined the liberals for giving amnesty forgive 11 million immigrants. >> reporter: six in ten voters in key districts say immigration will be a very important issue in their vote this year. voters we met in houston where president trump is campaigning for senator ted cruz tonight are

among them. is the issue of immigration going to get texans to the polls? >> what do you think? do you think we'll turnout? i think we will. >> reporter: another voter told us the caravans of migrants was being sponsored by outsiders. >> somebody is providing the transportation, somebody is providing the trains. >> also in texas, republican senator ted cruz is in an unexpected fight for his political life against democratic beto o'rourke. nancy cordes has this story. >> reporter: beto o'rourke hit eight early voting sites today. as the president winged in to campaign against him. does the president being here help you or hurt you? >> we'll see. i don't know that it matters one way or the other. the people of texas want tosnhe on our own terms. >> reporter: he's up against a well known republican incumbent. >> senator ted cruz. >> reporter: in a state president trump won by nine

points. >> do we agree with beto o'rourke that we should impeach president trump? >> reporter: cruz and mr. trump weren't always so close. >> donald, you're a sniffling coward. >> reporter: trading barbs16's . >> this man is a pathological liar. >> lyin' ted cruz. this is lyin' ted cruz. >> reporter: president trump insisted today the two had buried the hatchet. >> to me he's not lyin' ted any more. he's beautiful ted. >> reporter: but all those insults took a toll. the houston chronicle endorsed o o'rourke friday despite backing cruz in 2012. the paper cited o'rourke's command of issues that matter to the state and faulted cruz's, quote, repellent personality. o'rourke's personality and his refusal to move to the right have made him a progressive icon. >> even school teachers, we will support you. we'll make sure that you're paid a living wage.

>> overseas it is day one of the big investment conference in saudi arabia. but the murder of jamal khashoggi inside the saudi consulate in turkey has cast a paul over the gathering and a flood of cancellations. meanwhile there is new evidence of a saudi cover up. holly williams reports from turkey. >> reporter: what appears to be a surveillance video seems to show this man walking into the saudi consulate around 11:00 a.m. on october 2nd, two hours before jamal khashoggi entered the building and then lost his life. later, the same man, apparently emerges from th consulate dressed in khashoggi's clothes apart from the shoes. an attempt, it seems, to cover up khashoggi's death by pretending that he left the building unharmed. turkey's ruling party said today that what happened to jamal khashoggi was, quote, planned in a blood thirsty manner. directly contradicting the saudi

version of events that khashoggi died apparently accidentally after getting into a fight inside the saudi consulate. turkish police also found this car today, purportedly registered to the saudi consulate, but apparently abandoned more than ten miles away in an underground parking lot. there is still widespread skepticism about the saudi story, and no word from them on where khashoggi's body ended up. his friend told us they need it to hold a proper funeral. though even more important is getting to the truth. >> i hope that american people and congress will do their best for the jamal khashoggi and justice for jamal khashoggi. >> reporter: president trump's son-in-law and advisor jared kushner said today that the administration is still in a, quote, fact-finding phase. >> we're obviously getting as many facts as we can from the different places, and then we'll

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>> announcer: this is the "cbs overnight news." >> two weeks from today, americans will head to the polls with control of congress and president trump's agenda hanging in the balance. as usual, the airwaves are flooded with campaign commercials, but you may notice something different on tv and radio. more candidates are staying way from attack ads and focusing on letting voters see the softer side of themselves. ed o'keefe has the story. ♪ ♪ >> reporter: catchy tunes. and scare tactics don't cut it any more. this year the air war hits closer to home. >> we learned our oldest has a rare chronic disease,

preexisting condition. >> reporter: more intimate ads, more often from women candidates. >> a preexisting condition hung overall of us. >> reporter: even revealing baby bumps shall and breast-feeding. >> some say i'm no larry. i'm no man. >> reporter: the goal is to raise more money, go viral, and win. >> share this. buy a tv ad and prove the impossible. >> reporter: likal hannah dra ocasio-cortez. she's a former bartender who beat a ten-term incumbent with the help of this ad. >> this race is about people versus money. >> reporter: and there's texas air force vet m.j. haiger whose take on doors. >> one of my first memory was other doors, my r bugh. >> you don't want something like a typical political ad.

those don't work. >> reporter: mike putnam's team was behind the doors ad. and this one. >> when i was 13, they told me i couldn't fly in combat. >> reporter: some shot on iphones. >> no one will be taken for granted. >> reporter: most of this year's stand out ads are by democrats. but some come from republicans, like ron desantis, running for florida governor as a family man. >> build the wall. make america great again. >> reporter: or brian kemp. >> this is jake. >> reporter: gop candidate for georgia governor who takes aim in his ad at his daughter's boyfriend. >> two things if you gonna date one of my daughters, respect and? >> a healthy appreciation for the second amendment, sir. >> reporter: people are thirsting for uh thauthenticity they can believe in. >> a russian woman is the first midterms.harges in the upcoming she's accused of supervising

what they call an information warfare operation on social media. jeff pegues has this story. >> reporter: documents say 44 elena was leading the operation whose goal, according to russian operatives, was to sow discord in the u.s. political system. funded by the wealthy russian oligarch, an ally of vladimir putin. the target was next month's midterm elections with early voting in many states already underway. the former head of the justice department's national security division john carlin said russia is spending millions to undermine american democracy. >> we're under attack now. and our elections are at risk. there's no way this is taking place without the knowledge of putin himself. >> reporter: through the use of fake american online person as, they focused on divisive topics like immigration, gun control, race relations, and the nfl national anthem debate. one pro trump facebook account under the fake persona of bertha

malone posted this image of president obama saying he created $3 billion worth of new regulations while president trump wiped away $22 billion worth of regulations. that same account posted this anti-illegal immigration message arguing that deporting illegal immigrants saves americans money. deport them all, it said. this operation was very similar to the russian's interference in the 2016 presidential election, something president trump is reluctant to acknowledge. john bolton will

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will treat your stomach right. ea upset stomach, diarrhea.♪ try new pepto with ultra coating. acclaimed national geographic photographer is a man on a mission. he's dedicated his life to photographing every species of animal and insect on the face of the earth. the project is called "the photo ark." bill whitaker went along on one of his shoots on "60 minutes." >> reporter: on this arc, they go in one by one. to catch joe in action, we flew halfway around the world to the philippines, home to hundreds of unique species. flew 20 hours to get here. and you came all this way to take ati badger. >> absolutely. absolutely. >> boy, is he stinky.

'sern a skunk but smells worse. >> reporter: he's part badger, part skunk, and he fired a wreaking rocket after he entered the photo cage. >> how could something that cute be that stinky? >> reporter: it smelled so terrible that the next animal to leave the red carpet and head into the photo cage, a rare bintowan, took one whiff and backed out. sartori said he should have photographed the stink badger last. but the little stinker is a pungent prize. >> there's nobodse coming along to photograph the stink badger. that's the case with 95% of the ones i photograph. these are things that nobody will ever know existed if it weren't for the photo ark. if they can just see how beautiful this thing is, they would care. >> reporter: he cares so much he

spends half the year traveling the world. we saw him work 12-hour days in stifling humid 100-degree heat. >> okay, let's switch to right. >> reporter: it was tough for us just watching him build pop-up studios, switching between backdrops of black and white. why did you decide to use either black or white backgrounds? >> there are no distractions in these pictures. it's just the animal and you. and that animal is often looking you in the eye. >> reporter: that's when it all works. here's what happened years ago when joel tried to photograph a chimp. he spent more than an hour taping up the white background. >> so, now, doesn't this look nice? >> reporter: more than an hour for this. animals can be frustrating and dangerous, like this fierce luzon pig found only on a few philippine islands.

handlers had herded him into a makeshift photo pin. joel got as close as he dared, lying in a trough used usually >> i'mhaveotoarp. >> reporter: beyond the tusks and hoofs, this pig packs a mean temper. you've heard the expression, when pigs fly? watch. >> like a cow jumping over the moon, except it was a pig. let's see if i got it. i never had that happen, ever. he's sharp, you can see him. we got him. that's good. we got the picture. we don't need to photograph this species again. >> reporter: but then there was tricksy, perhaps the world's sweetest or rang tan. we met her not far from the mea outside manila. >> let her sigh the flash. so far so good.

>> reporter: the key question, would tricksy move in front of the white background? >> do you want to stand over there and get a picture? she's amazing. awesome, look at that. >> sweet girl. >> looks like a cover girl. if she lays down to look at you, you get down with her. you just lay down on the ground on eye level. she was completely calm. >> reporter: later sartori showed us his favorite tricksy shots. at national geographic headquarters in washington. what do you think she's thinking? >> i think she's thinking, is there a banana in this somewhere for me, a mango? let's go in there and get her on black. very nice, very nice. i like the one on white better. it's more direct. it's like she's involved. she's a partner in the process. hold, hold. i put my handout. i wasn't quite sure she was going to take it, but she did. and it was soft, yeah. that was an amazing experience.

>> reporter: what makes a great picture? >> emotion. that's what you look for in any great photograph. what's emotion -- >> a moment. >> we're looking for the eyes. humans are p humans are primates. >> reporter: you shoot theme like they're models. >> like a senior portrait. >> reporter: sartori shoots birds in tents so they won't fly away. this white crowned horn bill posed like a preening pro. different from when he attempted to shoot this specie states. >> ready? >> this lady's name is gem. not a bashful bid at all. she didn't tell me it was such a bad as. he attacks her when she goes in to feed him. this is one of these things when i'm back here. i said, can you put that bird in my tent? she said, sure, i can. this is a $6,000 camera. doesn't he know that?

owe, [ bleep ]. that's my blood right there. >> reporter: that's why he wanted to shoot a calm horned bill in the philippines. >> very nice bird. >> reporter: but here, the red rat snake kept attacking. >> god, they're real lungy, aren't they? >> reporter: fortunately he's not venomous. >> enjoying seeing the smint"60 minutes" cameraman get bid not me. >> reporter: it can blind you if it spits in your eye, and it can spit 10 feet. that's why joel wore goggles. but watch how close he gets to this cobra. >> i always thought when they had their hood out like that that that meant danger. >> well, he's reacting to us. we're like sky scrapers to this guy. so he's going to stand up and look as big as he can. they have a space prepped

already. >> reporter: in zoos sartori can shoot 20 species in one day. in the wild, it could take several days to get one good shot. now, with natural habitats vanishing, some species can only be found in zoos. >> a lot of them only exist in zoos, they have a captive breeding program for some of the rarest animals in the world. some people sale near d.en'teend they don't know the conservation effect of good zoos. >> reporter: sartori spent his first 16 years at national geographic taking pictures in the field. he scored numerous nag seen covers and endured various hardships. >> that's me on the alaskan slope. i hadn't made a good picture in three days. the editors here will say, joel. the mosquitoes, though. >> reporter: my god, that's incredible. >> my feet itched for a long time. >> you can see the full report on our website cbsnews.com.

the overnight news will be right when you humyolf god, in due time he will exalt you. hi, i'm joel osteen. i'm excited about being with you every week. i hope you'll tune in. you'll be inspired, you'll be encouraged. i'm looking forward to seeing you right here. you are fully loaded and completely equipped for the race that's been designed for you.

fun. lucy craft has the story. >> reporter: when it comes to factory robots, japan is . n hal of the hazardous bow he'hemoths ar

getting softer. it's a real strain on human bodies so robots do the heavy lifting and people do the light complex work, explains this developer. modern robots have a wide enough touch to grab and delicately box potato chips. built is the first tactile arm. this device enables users to remotely sense what's being touched, even from 3,000 miles away. technology that promises to transform fields from agriculture to medicine to disaster response. japan has long had a love affair with robots, and with its own itise th robs areon th coming off the factory floor to play an ever-expanding role in th notoriously shorthanded and helping monks perform

funerals. they're being mobilized as tour guides. and as the ide ping-pong partner, plays at any level, never slams down its racket. robo sniffer dogs keel over to warn their users about foot odor, and this pig tail bought tells users if they pass the smell test. this robot takes the heartache out of halitosis explains the developer. daytime tv has been replicated by this android eerily close to an actual celebrity. whatever shape they're in, robots are grabbing attention like never before. lucy craft, tokyo. >> that's the overnight news foe and, of cose, you can k back with us for t center in new

york city, i'm demarco morgan. captioning funded by cbs it's tuesday, october 23rd, 2018. this is the "cbs morning news." turkey's president today promises the naked truth about what happened to journalist jamal khashoggi. this as president trump's son-in-law and senior adviser jared kushner outlines the ail,ntding to being ud voters to the polls. this as the caravan continues to grow. and hurricane willa, a dangerous category four, is vapected to hit a popular