the u.s. president says it's his duty to nominate a supreme court justice despite what his critics claim. beijing adding to tensions in the south china sea by deploying missiles to an island in disputed waters. and doctor sanjay gupta's exclusive report on the first american patient to contract the zika virus. hello and welcome to our viewers here in the united states and all around the world. i'm rosemary church. this is "cnn newsroom." with the south carolina republican primary just days away, the presidential candidates' attacks on each other are intensifying. they've called each other liars and questioned each other's accomplishments. and as they battle for votes, president barack obama offered an unusually candid prediction of donald trump's chances of winning the white house.

>> i continue to believe mr. trump will not be president, and the reason is because i have a lot of faith in the american people. i think they recognize that being president is a serious job. it's not hosting a talk show or a reality show. it's not promotion. it's not marketing. it's hard. and a lot of people count on us getting it right. >> this man has done such a bad job. he has set us back so far. and for him to say that actually is a great compliment if you want to know the truth. you're lucky i didn't run last time when romney ran because you would have been a one-term president. >> well, the back and forth comes as a new poll shows trump with a healthy lead in south carolina. a cnn orc poll shows 38% of likely voters support trump, putting him 16 points ahead of

ted cruz. marco rubio is at 14%. jeb bush just barely in double digits. ben carson and john kasich trailing the pack. among democrats, the same survey shows hillary clinton with a sharp lead over bernie sanders, 56% to 38%, due in part to the strong support she's getting from women and black voters. so why does south carolina infamous for dirty politicking and mud slinging matter to such to candidates in both parties? jonathan mann explains. >> reporter: south carolina hosts the first in the sourt primary with republicans voting february 20th, democrats a week later. known for its beaches and barbecue, the palmetto state is a republican strong hold. almost three quarter of voters describe themselves as somewhat or very conservative in the state's last gop primary. nearly as many, 65%, say they were born again or evangelical christians. and about a quarter said they

were active or former military. south carolina is more diverse than iowa and new hampshire with a sizeable african-american community. the vast majority of them, democrats. you may recall south carolina governor nikki hailey, a rising star in the republican party, may headlines last summer when she ordered the removal of the confederate claim from the state house in columbia. >> it's time to move the flag from the capitol grounds. >> reporter: south carolina is also known for some political dirty tricks in its past primaries. in 2000, telephone pollsters implied senator john mccain had fathered an illegitimate black child. in 2007, voters received a fake christmas card purporting to be from mitt romney, suggesting the mormon candidate favored polyga polygamy. this year the charleston newspaper has an app telling its readers to report any activity. >> everybody starts attacking everybody. it's a battle royale.

>> but the state also has a history of picking a winner. in five of the last section elections, the winner of the south carolina primary went on to win the gop nomination. and the last three presidents, obama, bush, and clinton, all lost in new hampshire but won in south carolina, the year they were first elected. >> jonathan mann reporting there. meanwhile, president barack obama says he will nominate a replacement for supreme court justice antonin scalia despite republican objections. scalia died in his sleep over the weekend, and republican senators have already said they want the next president to propose his successor. here's white house correspondent michelle kosinski. >> that's now how the system is supposed to work. >> reporter: president obama taking questions for the first time on the supreme court vacancy, wasted no time hitting back at defiant republicans who vowed to not even bring his nominee up for a vote. >> we've almost gotten accustomed to how obstructionist

the senate's become when it comes to nominations. there is no unwritten law that says that it can only be done on off years. the venom and rancor in washington has prevented us from getting basic work done. >> reporter: he described his ideal nominee. >> we're going to find somebody who is an outstanding legal mind, somebody who cares deeply about our democracy and cares about rule of law. any firair minded poefrn, even somebody who disagreed with my politics, would say would serve with honor and integrity on the court. >> reporter: as for whom, a number of names have been circulating, and it is an interesting diverse court. sri srinivasan, federal judge, born in india, served in both the obama and bush administrations, worked on cases that supported gay marriage but also big oil and mining companies. congress approved him to the federal bench unanimously two years ago. you can see how such choices could put republican opponents in a tough spot.

that may well be the strategy. choose a moderate that could spark a storm of criticism if republicans refuse to even take it up. or if a liberal choice, help rally democrats to get out and vote. today in a washington post op-ed, senate minority leader harry raet blasted rnz's vows to shut the nominee out. if republicans proceed, they will ensure that this republican majority is remembered as the most nakedly partisan, obstructionist and irresponsible majority in history. other potential choices, more federal judges, paul watford, who's african-american, jane kelly, a long time public defender. mexican born california supreme court judge mariano flor entee know kwa ar. also attorney general loretta lynch, confirmed by the senate just last year, after a record delay that infuriated the white house. now, though, some republicans are intimating that stone walling could be the wrong choice. senate judiciary chair chuck grassley now says -- >> i would wait until the

nominee is made before i would make any decision. >> reporter: and this from senator thom tillis. >> i think we fall into the trap if we just simply say sight unseen, we fall into the trap of being obstructionist. >> reporter: michelle kosinski reporting there. later this hour, we will here from a constitutional attorney about the legal issues of replacing justice scalia. united nations aide workers plan to head into seven besieged areas inside syria within the next few days. it comes in after u.n. special envoys began negotiations with the syrian regimes foreign minister. their talks are set to continue, and miss tour ra hopes to get permission for more aid convoys into areas held by all sides in syria's civil war. >> we have been particularly talking about the issue about humanitarian unhindered access

to all besieged areas, not only by the government but also by the opposition and by isil. >> meantime, troops from the syrian regime have quickly gained ground in the civil war. cnn's jim monday cora change sat down with the rebel commander who says the changing battle lines are the result of one decisive factor, russian air power. >> reporter: rolling through the rubble, regime forces declare victory. after weeks of heavy fighting, syrian rebels last month withdrew from some small strategic town. since then, another town in the south was also lost to regime forces. rebel commanders say assets allies in sky have shifted the balance, and with this air cover, opposition forces believe regime troops are now moving to retake the country's border with jordan, a move they say mirror

tactics and advances in northern syria. >> translator: we can only blame the so-called friends of the syrian people who are sitting back as spectators and watching us getting killed day and night. the russians are killing in the north and south. they claim to have come to syria to fight isis, but most of their strikes have targeted the mod ral syrian opposition. >> he is a top opposition commander fighting under the banner of the free syrian army. his group will adapt and change tactics, but his concern is with the civilians living in a constant state of fear. tens of thousands of them according to local officials have fled in recent weeks. with jordan citing security concerns, it's admitting 50 to 100 syrian refugees a day. there are about 20,000 others massed along the country's northeastern border. officials say those fleeing the violence -- unless there is a

pause in violence, they warn that could quickly change. as for the ongoing peace talk, there is a dim view. >> translator: as rebels of the opposition, we agree to go for a political solution, but where is that political solution? basically human rights sponsored by world powers. >> the united states needs groups like this in as partners in the fight against isis, but this commander says his fighters need more than just words. they need weapons desperately. >> announcer: unfortunately we are on our own with no intervention with the friends of syria to help us. most of the support comes -- we hold western countries, especially the united states, responsible for the humanitarian disaster because only the u.s. can stop the russians. >> he said they've long lost faith in the international community, but with no other alternative, they wait for help, he says, from countries they still call friends.

cnn, amman. another big story we are following, china has deployed surface to air missiles on the contested woody island in the south china sea. that is according to taiwan and senior u.s. military officials. beijing claims it is in self-defense. cnn's ivan watson joins us with more on the growing tension in that region. ivan, what do we know is happening on this island right now, and how is the region responding? >> reporter: well, first of all, the island is called woody island, and it's in the south china sea in an archipelago known as the paracel islands that are claimed not only by china, but also by vietnam and taiwan. now, what the taiwanese defense ministry and the pentagon are telling cnn is that china has moved surface to air missiles to this small island. it is not that unforeseen because china has had a military

presence here, i'm told, for some 50 some odd years. so it has had a presence there. however, some people are taking this as a somewhat provocative act because it comes on the tail of a summit that u.s. president barack obama hosted in california with leaders of southeast asian countries, and the white house was really pushing hard a point that the south china sea should not be militarized, and that all the competing territorial claims in this body of water, which is used for the transit of an estimated 30% of the world's shipping, that this all be resolved peacefully through arbitration. and so what you have now is the u.s. has been challenging the chinese territorial claims to this body of water, and get this. china, which is up here, is claiming all of this, all the way down to here and back, and there are competing claims from countries like the philippines,

malaysia, bu ton, vietnam, they're all competing. despite that, china has been moving ahead and building up islands here in the spratly islands, literally building manmade islands. take a look at the before and after photos. this is a reef that was called fiery cross before major engineering projects. now, rosemary, take a look at this. china built a landing strip here and basically constructed an island out of the water here in waters that is claimed by the philippines and much closer to actual philippines territory. the u.s. has been flying warplanes and sailing navy ships close to areas like this as what the u.s. calls freedom of navigation operations to challenge china's claims to these areas. china has responded by saying that this is not good for the stability of the region, and it's been defending its buildup of artificial islands like this, saying this is purely a matter

of self-defense and that this installations are designed to help fishing and emergency medical rescues in the surrounding waters. rosemary. >> our ivan watson keeping a close eye on the situation from his vantage point in hong kong. many thanks to you, ivan. still to come, pope francis' time in mexico is coming to an end. we will look at what he's got planned for the last day of his trip. back in a moment.

welcome back, everyone. pope francis brought a message of hope to a mexican city beset by drug violence. he celebrated mass in morelia, where thousands gathered to hear him speak. the pope encouraged them not to give in to cartels and violence. he also spoke out against mexico's wealthy elite. >> translator: it will be difficult to feel rich when we see the loss of friends or of family members to the hands of drug traffickers, to drugs, to criminal organizations which

field terror. it is difficult to feel the riches of a nation when there are no opportunities for dignified work. >> and later on tuesday, the normally cool pope francis lost his temper and his balance in the middle of a crowd. i want you to take a look at this. someone pulled the pontiff so hard, he fell onto a child in a wheelchair, and after aides and security grabbed him and helped him get back upright, he scolded the person who had pulled him down for being selfish. well, the pope will end his mexico tour on wednesday with a trip to juarez just south of the u.s. border. cnn's paulo sandoval tells us what's planned for his last day in the country. >> reporter: there's no shortage of anticipation in security here on the streets of juarez, mexico. it's a place once considered one of the most dangerous placed of the world at the height of a bloody cartel turf war in 2010.

now it gets ready to welcome the head of the catholic church. the pope will head directly to the state prison here in the city. it's a place that now reflects the various changes that the people have juarez have seen, a city that's known in a slow but steady path to peace. francis is expected to pray in that prison with about 700 inmates. however, most people here will tell you that some of the most symbolic moments will come towards the end of the day as he heads to the u.s./mexico border to celebrate an open air mass. at least 215,000 people expected to be in attendance. one of the key moments will come as he makes his way to a temporary memorial to migrants that's been set up only a few yards away from that boundary. he will pray for those immigrants that have made it across the border and of course those who have not. ultimately, though, the end of the day will come as pope francis gets ready to head back to the vatican. the people not only in waur es

but also several mexican cities that his message of hope and peace resonates for years to come. >> to read more about the pope's tour, visit our website at cnn.com/popein diagnose mexico. hundreds of sharks are swimming near the shores of palm beach in florida this week. but the effects of el nino coupled with climate change may be altering their migration routes. all the details on this now. is this going to be a permanent situation? >> the studies in recent years, rosemary, are starting to show a pretty significant shift, and that's really what's concerning about all of this because if it is permanent then you're putting a lot more people in close proximity to a large scale of sharks. here's a shark sighting in place on tuesday across palm beach in florida. you see another one from that same day. in fact the a paddle boarder right here. you can see several schools of

sharks right here akroes this area and of court potentially the paddle boarder has no idea. images like this are really what's concerning. we know normal migration patterns take them farther south where the temperate climate supports the migration towards that region. they've typically come to their farthest extent being around the carolinas. what is concerning is the shift in the migration pattern. some of the possible causes, we know climate change could have a lot to do with it. as our planet warms, the pattern can shift. we know el nino is in play as well, but the increased water salinity because of drought could also play a role as well. we know large scale drought is taking place. that is not news. of course that plays a role in the salinity of ocean across this region, and that can enhance where the sharks begin to mieg rate. we know decreased food supply, there is overfishing across this region. typically sharks life to stay

off shore. recent observations are bringing them closer potentially looking for food near the coastal communities. but shark attacks in particular, in 2015 alone, you look at the number as cross the united states. record numbers were set. shark attacks, we had some 59 unprovoked attacks across the united states. in the state of florida, that accounted for more than half of them. 30 coming out of the state of florida. globally speaking, the second and third place countries also incredible because australia had some 18 shark attacks observed. these were unprovoked, south africa saw about eight shark attacked unprovoked. so you put the number of people together, you enhance the water temperatures and with el nino in place, that is really what is concerning. the numbers clearly show that typically say around 35 shark attacks in a ten year average. we had an anomalous year in 2007 with 50 shark attacks and you see a trend develop in recent

years where shark attacks are increasing and are averaging closer to 50. this is something that a lot of people in this field are looking at carefully and observe to see how this could play out as you're now increasing the number of people coming in close proximity to the number of sharks. rosemary. >> a real wake-up call there. many thanks. a judge in california has ordered apple to help federal investigators unlock an iphone used by one of the attackers in the san bernardino shootings. syed farook and his wife killed 14 people in that attack. police later killed the duo in a shoot-out. authorities have not been able to access data from the phone because it's locked with a pass code. and too many failed attempts of course to unlock it would activate apple's auto-erase function. well, after more than 50 years of cold war tensions, it's now legal for airlines to operate commercial flights between cuba and the u.s. the agreement was reached in december, and final papers were

signed on tuesday. u.s. airlines now have about two weeks to bid for rights to fly to the island nation. flights between the two countries could resume by october. well, republicans and the u.s. president are squaring off over filling a vacancy on the supreme court. coming up, a closer look at the legal questions. plus a return engagement in paris for a u.s. rock band. later this hour, why the concert was so emotionally charged.

welcome back, everyone, to our viewers here in the united states and to those of you all around the world. i'm rosemary church. i want to update you on the main stories we're following this hour. china has deployed surface to air missiles on a disputed island in the south china sea. that is according to taiwan and senior u.s. military officials. beijing claims it's in self-defense. the move could ratchet up tensions with neighboring countries, which are already locked in a territorial feud with china in the region. a u.s. state department spokesman says russia must, quote, put up or shut up if a cease fire in syria is to take effect on friday. world powers including russia agreed in principle to the truce last week, but russia continues to supply the syrian regime and carry out air strikes. a judge in california has ordered apple to help federal investigators unlock an iphone used by syed farook, one of the

attackers in the deadly san bernardino shootings. authorities say the phone is locked with a passcode. too many failed attempts of course to crack the code would activate apple's auto erase function. president barack obama says he will name an indisputably qualified nominee to the supreme court, and he took a swipe at republicans who say the next president should appoint the justice to replace antonin scalia. >> i'm amused when i hear people who claim to be strict interpreters of the constitution suddenly reading into it a whole series of provisions that are not there. there is more than enough time for the senate to consider, in a thoughtful way, the record of a nominee that i present and to make a decision.

>> joining me now to talk more about the debate regarding when the supreme court vacancy can be filled and by whom. but when it comes to the constitution, there is no doubt that president obama is within his right to nominate the person to fill that position. so is this just politics at play? >> it is just politics. the constitution clearly gives the president not just the authority but the obligation to nominate and appoint a justice to the united states supreme court whenever there's a vacancy. now, the senate does have a role in that process. it's supposed to give its advice and consent to the president. but that just means the senate has to consider the nominee that the president sends over. they're saying they don't want to do that. >> that's the thing. the republicans have said, no, we'll refuse. so what happens in that sort of situation? >> well, i would expect that the president will still make a nomination. the president is going to send the senate a name. now, what the senate does with that is up to the senate. there's nothing in the

constitution that gives the president some way to compel the senate to vote. so the senate can say, okay, we've received your nomination. we're going to consider this individual. they can take as long as they need to. there's nothing in the constitution that sets a timetable. so they may just simply table the nomination, deliberate it, and wait until the next election without ever voting up or down on the nominee. >> and of course justice scalia referred to himself as a social conservative. how likely is it that president obama would fill that vacancy with someone, a social conservative? >> i don't see that happening. i mean the president has been clear, i think, in the past with his nominations that while they've certainly been qualified to serve, they've had the right legal credentials and qualifications, they've seen cases the way the president sees cases. they share his theory of the constitution and the principles behind it. so i think if the president has one last opportunity to nominate another supreme court justice, it's going to be someone like

the ones we've seen before with justice kagan, justice sotomayor, it's going to be someone closer to him politically. >> which will upset the republicans no end, of course. the problem here, the longer they wait to fill that position, the more likely you're going to have this split 4-4 court with the supreme court when it comes up to some big decisions when it comes to immigration and abortion and other issues. let's talk about that and what happens in a situation like that. >> well, it's unusual because rarely do we have a situation where we know there's going to be a vacancy for so long. i mean generally if a justice is going to leave office, that justice will announce that they're going to retire once a replacement has been confirmed. so you have a complete nine-person court until you have the new justice. in this case, we don't know how long we're going to go with an eight-person court, and that's not a full court. for many cases, it won't matter. a lot of cases that go in front of the supreme court, they're not close. you know, you'll get an 8-1

decision or even a 9-0 decision. but for a few critical cases, abors, immigration, there's potentially a death penalty case that may call into question the constitutionality of how we're imposing the death penalty, those close cases, you really need that ninth vote to break a tie. right now, most people would say we've got four relatively conservative justices and four moderate or liberal justices, so that we're short one. >> page pate, always great to get your analysis. appreciate it. >> enjoyed it. a u.s. rock band has returned to paris to finish its show. this time security was tight on tuesday as eagles of death metal performed at a different venue. its performance last year at a theater in the french capital came to an abrupt and tragic end when terrorists killed dozens of people. erin, it has been a long and difficult three months for people in paris as they try to

digest and move forward and, of course, this performance was an effort to heal. talk to us about that. >> reporter: that's right, rosema rosemary. last night was a night of rock and roll and reflection. eagles of death metal finished what they started over three months ago to the delight of a sold-out concert hall. some 900 survivors and relatives of victims were in attendance for a very emotional evening. following the concert, i spoke with one survivor, natalie, tears in her eyes. she told me that the concert for her was a form of therapy, a step towards returning to normal life. take a listen. >> i started to cry. i wasn't the only one to cry. many people around were crying. with my boyfriend, we held each other very tight, and we hug the

each other, and we hugged with other people too, other victims because a beautiful thing. >> reporter: joining me now to talk more about last night's concert is cnn.com reporter brineny jones. you were inside the venue, this was certainly not your average concert. >> it wasn't, and the signs of that were apparent even before we got inside the venue and security levels were incredibly high, more like at an airport than a concert. ids were checked repeatedly. we had pat down, x-ray machines, that kind of thing. once you got inside, it did seem more like your typical rock concert for a little while. there were people dancing, having fun, drinking beer with friends. then on the sidelines, there were odd signs that things were a little bit amiss. you know a i team of counselors were standing by. there were some people who were visibly upset by the whole thing.

and, you know, there were some who just looked like they were using every ounce of strength they had not to run for the door. >> how did the band interact with the crowd? >> once the band got on stage, there was very much a sense of we're going to get through this together because, remember, for the band themselves, you know, this was a hugely traumatic experience. they lost friends too. at one point they dedicated a song to their merchandising manager who was killed at the bataclan, and the front man of the eagles, jesse hughes, said several times through the evening how much he needed the audience there last night, how much they were helping him get through as much as he was helping them. at several points, the house lights came up a little bit, and it was as if the band kinded needed to check that everybody was still there and doing okay. >> any other stand out moments. >> at the beginning of the ann core jesse came out on the stage alone and picked up a guitar that he hadn't use until that point that was painted in the

colors of the french flag and held aloft, and declared he was proud to consider himself a pa rizian. later on in the encore, he kind of disappeared from the stage. he vanished only to reappear right at the back of the venue, on the balcony, which until then, you know, obviously down in the mosh pit, in the main part of the crowd, it had been crazy. there was crowd surfing going on. people were dancing. but upstairs, it was calmer. there was kind of a time for reflection up there. people who were struggling a little bit more found seats up there. and by kind of coming up there and playing for those guys too, it was sort of a sign of solidarity, i guess, that he and the band and all of the guys in the theater were in this together. they were going to get through it together. and that, you know, yes, this tragedy is a terrible thing that happened has united them, but they're not going to let it stop

them from going out and dancing with their friends. >> sounds like an incredible event. one survivor said the evening was an act of courage. >> absolutely. there was some really brave people on stage and the audience last night. >> thank you so much. rosemary, the concert was actually not held at the bataclan. it was held at the olympia hall. the bataclan is still closed. authorities say they expect it to be open perhaps by the end of the year. rosemary. >> we hope so. certainly a moment of solidarity there in paris. erin mclaughlin, many thanks to you. years before the zika virus left africa, a u.s. woman was infected with the mosquito borne virus without being bitten. we will explain how in our exclusive report. back in a moment.

the u.s. food and drug administration is asking people returning from areas affected by the zika virus to delay donating blood for four weeks.

the fda says there's no known cases of the mosquito-borne virus entering the u.s. blood supply, but adds the risk of blood transmission is likely. the recommendation also applies to people who have had sexual contact with a person who has traveled to a zika-infected area within the last three months. now, this comes as the virus is spreading rapidly. 30 countries are now battling outbreaks. that's according to the u.s. centers for disease control and prevention. earlier this month, a man in dallas made headlines as the first person to transmit the zika virus sexually. but the first such documented case actually happened eight years ago in the u.s. could america's first patient help us understand how the virus is spread? here's chief medical correspondent sanjay gupta with our exclusive report.

>> reporter: just looking at the images, it isn't hard to understand why professor brian foy became so sick. the year was 2008. brian was in senegal, studying an insect most of us would rather avoid, mosquitos. >> i've heard that mosquitos killed more than any other animal on the planet. >> by far, yes. >> with this sort of work, it wasn't sort of unusual to feel a little miserable when you got home. but this time was different. >> it really hit me. i think i was driving in a car and i just couldn't keep my eyes open. >> tests came back negative for just about everything. the only thing brian was fairly certain about, this virus was from mosquitos, and it hit him hard. his whole body hurt. ankle pain, hip pain, wrists and thumbs. a rash here on the chest and back. mild fever. brian's wife, joy, who hadn't been to africa, in fact, hadn't even left northern colorado in more than a year, also got sick. >> she got worse than i did by

far. it was stronger and it lasted a lot longer. she couldn't really open cans and things like that for quite a long time. >> so at this point, you knew she had what you had? >> i felt very confident, yes. >> brian and joy were convinced the virus had been transmitted by sex. >> we had just saw each other, you know. do what husbands and wives do. >> but what many don't know is the testicles are in an area of the body known as immune privileged. that's an area where the immune system won't easily attack, probably because it would affect a man's ability to have children in the future. but it also means viruss can hide more safely here and be sexually transmitted. brian decided to freeze his and joy's blood in the hopes they would one day find the answer. and by the time zika hitchhiked its way around the world to the americas, they knew the virus had already made its way to the united states nearly a decade earlier, even if no one else had listened to them. >> they wanted to see more

evidence. now unfortunately we have more evidence. >> and consider this. if we had paid attention back in 2008, maybe today we would have a therapy or even a vaccine for zika virus. >> all right, so this is it, huh? >> this is the insectary. >> today brian is giving some of the mosquitos he studies the treat they need more than any other, human blood. it helps him better understand how they transmit the virus. the mosquito, which typically only lives 30 days, takes 14 days before it can spread the virus. so a solution may not be to eradicate the deadliest animal on the planet but just to shorten its life span. dr. sanjay gupta, cnn, fort collins, colorado. >> fascinating stuff there. a nevada rancher accused of leading an armed standoff against the u.s. federal government in 2014 has been denied bail. a federal judge in oregon says

cliven bundy is a flight risk. the 69-year-old faces several charges, including conspiracy to commit an offense against the united states, extortion, and obstruction of justice. bundy was arrested last week in oregon, where his two sons were allegedly involved in an armed standoff against federal authorities there. "cnn newsroom" continues after this short break. here's a little healthy advice. take care of what makes you...you. aveeno® daily moisturizing body wash and lotion

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police in west palm beach, florida, arrested a teenager they say was pretending to be a doctor. officers hauled the 18-year-old away from a medical clinic on tuesday. the health department says he advertised himself as a doctor running an alternative medicine and urgent care clinic. last year, the teen was accused of posing as a doctor as a local medical center, and he says he's hurt by the allegations. a new top dog has been crowned at the westminster kennel club's annual show.

>> best in show dog tonight for 2016 is the german shorthaired pointer. >> c.j. is a 3-year-old male, and the first sporting group winner to take best in show since 2009. the runner up this year was a borzoi, also known as a russian wolfhound. and you could say that hillary clinton's u.s. presidential campaign has gone to the dogs, or at least that's what she sounded like during a rally this week in reno, nevada. while folks on the internet find creative ways to imitate her, donald trump says he refuses to bark back. cnn's jeanne moos reports. >> reporter: the bite is proving worse than the bark as the internet nips at hillary for her doggie imitation. ♪ who let the dogs out >> reporter: juxtaposing music videos and movie clips. >> bark like a dog. >> reporter: all because hillary told a story about an old

political ad that featured a dog trained to bark at lies. wouldn't that come in handy for following around her republican rivals, she said. >> every time they say these things, like, oh, you know, the great recession was caused by too much regulation. >> her inner terrier. >> she's funny. >> i don't know if that was a tribute to the westminster dog show. >> reporter: one that donald trump refused to emulate. >> if i did that, i would be ridiculed all over the place. i won't do t. i'm not going to imitate her. there will be no barking. >> reporter: as if hillary didn't face ridicule, an actual dog barking interruption at a trump rally last month was one of the many mocking memes making the rounds. >> what was that? was that a dog? >> hillary. >> you hit's hillary. >> it's enough to make triumph the insult dog. >> senator, is it true you tried to shut down the government so you could go to a nickelback

concert? >> reporter: feel overshadowed on the campaign trail. but hillary is in the puppy league compared to this -- imitating some scaring neighborhood dogs. >> they came bounding over. >> reporter: his imitation was remixed. it even scared real dogs. though psychodog man suffered some of the exact same mockery. ♪ who let the dogs out >> reporter: his dog would make mincemeat of hillary's. >> who let the dogs out? >> reporter: jeanne moos, cnn, new york. >> i think he's probably regretting that. apparently hillary clinton is not the only u.s. presidential candidate growling like a dog these days. >> i wish we could actually have that argument on a debate stage instead of --

[ barking ] >> it's not a skill set i ever envisioned being necessary to aspire to the presidency of the united states. but i've gotten better at it. [ barking ] >> bush used this light moment during a campaign stop in south carolina tuesday to mimic the bickering between republican candidates. he also took a jab at opponent donald trump by saying he must work to have the last word with the billionaire in a debate since trump is a bully. well, just moments ago, japan launched a rocket into space carrying a satellite that will study various kinds of x-rays and gamma-raies. the satellite is expected to operate in low orbit for three years. there you go. thanks for watching "cnn newsroom." i'm rosemary church. remember to connect with me anytime on twitter at rosemary cnn. "early start" is coming for your way for our viewers in the u.s. have a great day.

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-- captions by vitac -- www.vitac.com president obama defiant, promising to nominate someone to fill the supreme court vacancy and with a new criticism for the front runner in the race for president. good morning. welcome to "early start." good to see you. >> good to see you. who he might nominate to replace antonin scalia except to say it's someone with a legal mind. the white house strategy for gett