Newsroom. Great to have you with us and well begin with the highly anticipated debate between the republican candidates for u. S. Presidency. It is set for thursday. But voters got a preview with a televised forum in New Hampshire monday night. 14 of the 17 hopefuls took questions on a number of topics. They did not have to compete with the outspoken front runner because donald trump didnt attend. Cnns average of five recent polls show the billionaire is now up 8 points over his closest rival, former Florida Governor jeb bush. While trump may be leading the poll, he claims to be an underdog when it comes to debates. Reporter with the first republican primary debate just days away im not a debater. Reporter front runner donald trump is making the rounds trying to lower expectations for his performance. Hes also expanding on his critique of president obama, explaining why he thinks america wont see another black president for generations. I think he has set a very low bar, and i think its a shame for the africanAmerican People. And by the way he has done nothing for africanamericans. Reporter all this as trump leads the gop pack in recent polls. Hes had 26 in the monmouth poll out today. More than double jeb bush and wisconsin Governor Scott walker. And trumps favorability numbers are on the rise with 52 of republicans now say they view him favor when iably. Thats up from a few weeks ago. The typically confident real estate mogul told cbs im not a debater. Reporter but hes not afraid of a fight, and walker says hes ready. It means hes assured a spot at center stage when the top ten candidates face off in cleveland. The top appear set, with Chris Christie rick perry and john kasich vying for the final spot. Christie says hes feeling good about his chances. Ill be very happy on tuesday when the ten names come out and im in there. Reporter with trump dominating the debate, some candidates are looking for creative ways to get noticed, including texas senator ted cruz. In texas we cook bacon a little differently than most folks. Reporter using an a video to show his firearm and bacon skills. Machine gun bacon. The nine other republicans who will be on that debate stage are facing a very real problem. How to trump donald trump. The conventional wisdom has been go after the front runner. But so far donald trump has proved that what doesnt kill him only makes him stronger. That strategy of going hard after the front runner may just backfire. We are joined from washington. How does this turn into a godzilla movie . Reporter we have a phrase in washington. You wrestle with a pig, you get dirty and the pig likes it. Do they go after trump or do they ryetry to ignore him. If your name is mentioned you get a chance to respond. Youll have candidates like ted cruz who will try to avoid any interaction with trump at all because he doesnt want to be in trumps cross hairs. Thats why he resorts to things like using machine guns to cook bacon. Does it work against them they have to shut up and listen and they may not get the last word in. That doesnt seem to be very advantageous to trump. Reporter . The rules go out the window. Its going to be upon the moderators to try to wrangle these ten different personalities into their boxes, but no one really expects thats going to happen. So what were going to see is over the course of the two hours, people challenge the rules. People challenge the challenges to the rules, and ultimately its going to result in whats going to be tv mayhem. You talk about this strategy that some will engage in try to look president a dont engage with donald trump. The old saying if you ignore a bully, theyll leave you alone. That doesnt apply to donald trump, because he just doesnt quit. He has nothing to lose. And for him, every attack is a positive and every attack against him is also a positive. Theres really no strategy. You saw one of the leading advisers to one of the candidates treat how do you candidates tweet, how do you prepare for a race when one of the drivers is driving drunk. You have a segment of the gop base that is vying for those trump votes, and thats why you see people on the far right, like ted cruz really avoiding getting after trump because theyre going after the same voters. You have a lot of establishment candidates who are actually looking to appeal to a different part of the electorate. So they have more of an incentive to go after trump. The top ten will be in prime time. And the have an earlier debate. And in terms of entertainment value, thats going to be pure gold. No one doubts that but if youre looking for substance and policy if you want to learn something, maybe that earlier debate with the leftovers may actually be more worthwhile. I think youre absolutely right. Theres two things if youre in that earlier debate you dont have to worry about the trump problem. Youll have more time to talk. It will be a more adult setting, despite the fact that youre being put at whats being called the kiddie table. Youll be able to set your own agenda and make your own case for the presidency. Thanks for being with us. Anytime. And there could be some big changes soon to the democratic field of president ial hopefuls. Vice President Joe Biden is considering a run. It wouldnt be his first. But as jeff zel any reports theres growing support for mr. Biden to give it a try. Looking for a job. Reporter looking for a job, but the question for joe biden is, which one . Hes long eyed the presidency and hes still considering joining the 2016 race. The summertime speculation has suddenly hit full boil over whether hell challenge Hillary Clinton for the democratic mom make. One factor weighing heavy, his son beau biden urged his father to run before dying of brain cancer in may. And now one of beau bidens close advisers is joining a Grass Roots Movement called draft biden, and hes Holding Meetings of his own to see if theres interest in backing a new campaign. Questions about clintons candidacy hang over the biden boomlet. A recent quinnipiac poll only viewed 37 showing hillary trustworthy. Hillary does have a problem with trust in this country right now. And i do believe that when and if he decides to run joe will add a new dimension to this race. Reporter biden has run for president twice before. Hes never ruled out a third time. If he did, the gaffs from more than four decades in politics would surely follow him into the race like this famous explative right before of president obama signed the health care law. [ bleep ]. Reporter he told Gloria Bolger he would make his own decision. The question is am i, do i, am i convinced i am best positioned of anyone else to lead the country . Reporter but clinton has a big head start. Shes airing her first tv commercials tomorrow. I believe that when families are Strong America is strong. Its your time. And our thanks to jeff zeleny for that report. And for more on mr. Bidens possible run for the white house, police go to cnn. Com politics. You will find all the latest on the 2016 u. S. President ial campaign. Meantime the guy whos in the job right now, president obama has taken what hes called the most important step to fight Climate Change and now he is selling his new plan to the American People. On monday he explained how it will work and why now is the time for action. Were the first generation to feel the impact of Climate Change and the last generation that can do something about it. And thats why i committed the United States to leading the world on this challenge. Because i believe there is such a thing as being too late. The plan cuts Carbon Emissions from coal power plants by 32 from 2005 levels by the year 2030. Mr. Obama says americans are already feeling the effects of Climate Change. Over the past 15 years, 14 have been the warmest. Republicans argue it will increase energy costs and destroy jobs. Im not going to sit by while the white house takes aim at the lifeblood of our states economy. For the first time theyve extended this to require states in a very coercive way but there is support from the business sector. 365 companies, in fact including you know lever, nestle and mars contacted more than two dozen governors asking them to meet the standards. Firefighters are battling more than two dozen firefighters which have scorched 54,000 hectares. The largest is the rocky fire. At last report only 12 was contained. The record drought and high temperatures are fueling the flames. Reporter california burning. At least 21 major fires are currently raging in the park state. Gusty winds and low humidity are creating a tinder box of sorts fueled by lightning. Daunting conditions for the nearly 10,000 firefighters battling the fire. A firefighter from south dakota was killed while working a fire. The married father of two was scouting ways to attack fire when he became trapped by flames. As the fire ravages anything in its path it looked like a bomb went off over here. Its scary. Reporter the largest flame, the rocky fire has burned many acres north of wine country. There are firefighters that have had 25 30 years on the job that have never seen fire behavior like weve seen here on the rocky fire. Reporter the reason four years of drought and 100 degree heat have created conditions perfect for explosive growth. So far two dozen homes have been destroyed. Governor jerry brown declaring a state of emergency and Evacuations Ordered for more than 13,000 californians worrying them that their homes may be in the fires path. Hopefully the fire doesnt come this far and burn our stuff down so well come back to at least something, our house still here. Reporter from the air you can see the intensity as the wall of flames moves across the 2003 line mountains. Crews on the scene digging control lines setting controlled burns, hoping to stop the fire in its tracks by lighting brush and fuel in the blazes path. To see conditions like they are now is concerning. One less spark this summer means one less wildfire. And we are joined from the fire zone. So paul are conditions easing . Does it feel any better where you are . And what can firefighters expect over the next 24 hours . Reporter its so tricky. For a while it looked for all the world like they had the upper hand in this fire. No big active fights. But the next thing you know these dastardly winds shifted, literally doubling back on themselves, if you will going from south to north. And then they had trouble again. The fire spotted, as they say. It jumped a highway. And they had to go off to the races and contain it and be after another 60 to 100 acres that were burned. Thankfully theyd evacuated everybody. But theyre being tortured by the shifting winds, john. Okay. And describe the scene around you where you are right now. Is that one of the areas where the crews have been back burning to try to control this fire . Reporter exactly. They said were not taking any chances. And what they did is they put a couple different crews up on this hillside. They put an initial attack crew about 35 yards up and they have these torches that they call these gas cans full of a little bit of gasoline some diesel mixed in there. They set the first backfire. Then they set another one below it. It was really well choreographed. There are no firefighters behind me right now. Thats how confident they are that theyve held this line. This is on the eastern edge of this fire here in calousa county. Theyre fighting fire with fire. You can tell behind me huge huge paths of nothing but blackened acreage, and that of course is enough to keep a fire from advancing. It has no fresh fuel grass, timber whatever to burn john. Looks incredibly desolate. Thanks for being with us. We appreciate t fbltsit. Okay. Lets get a little more on the conditions and what they will be facing. What they say a lot of these fires have been started by dry thunderstorms. Lightning strikes but no rain. What do they mean by that . Well basically theres no rain coming out of the thunderstorm. Essentially, the air is so dry that the rainy evaporates before it hits the ground. You get the lightning but you dont get the beneficial rainfall. What we need is a flat rain without lightning coming in from the pacific. Thats not going to happen. Were in the dry season. Perhaps with an el nino well get an enhanced rainy season. And the other thing they talk about, when you hear the firefighters they talk about the fire behavior something they havent seen. The reason for that is because there is no moisture on the vegetation. Theres no moisture on the ground so the fire can just run amok here. 62,000 acres. I started covering this over the weekend. We were about 200 acres. Weve grown incredibly. The big news is 12 containment. That sounds low, and it is but we were at 5 . So were going in the right direction. Unfortunately, 6300 structures are being threatened by this fire as we continue with this exceptional drought. Is 00 100 of california is under severe drought. And the top, exceptional drought, 46 . Almost half the state. And north of San Francisco is where we have exceptional drought and the vegetation there cannot be drier. It is just crackling out there. Look at the temperatures as we take you into the afternoon. Theyre not terrible. Well get into some 70s and 80s by the afternoon. We could be in the 100s. That big ridges that broken down a little bit. And the humidity helps a bit at night. But once we warm up the air, through the afternoon, watch what happens here. We drop back down. Any where from 35 to 40 . Thats not terribly low. Can you go down to 10 to 15, but 30 is low. And well get a break into the 60s. Forecast well talk about 80s in the next few days. Weve been in the 100s. But what we need is rain. Theyre not going to get it. They have over 9,000 firefighters right now in california spanned out covering this. The only way youre getting rain is from the helicopters and the planes that are dropping it on them. For the foreseeable future. Yes. We move to New Hampshire right now where a circus tent has collapsed, killing at least two people. More than a dozen others were hurt. About 100 people were inside the tent watching a performance when a severe thunderstorm packing high wind and large hail rolled through the area. Were told that the two fatalities were a boy and a girl who were both watching the show. A short break here. When we come back a mexican journalist bent on exposing corruption is laid to rest after he was gunned down over the weekend. Colleagues remember him, and they ask, is the danger really worth it . Also after a gunman opened fire in a movie starring amy schumer, she gets serious about gun control. Watch as these magnificent creatures take flight, soaring away from home towards the promise of a better existence. But these birds are suffering. Because this better place turned out to have a less reliable Cell Phone Network and the videos on their little bird phones kept buffering. Birds hate that. So they came back home. Because they get 300 from switching back to verizon, and so can you verizon. Come home to a better network. 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The dpets penalty will stay on the table for james holmes. There he is in court with the bird and the white shirt. On monday jurors agreed to keep the Death Penalty as an option despite pleas from his mother and father. He killed 12 and injured 70 others back in 2012. His lawyers argue he is mentally ill. In a few hours, jurors will begin making a final decision on whether holmes will be executed or spend the rest of his life in prison. A new voice is joining americas gun control debate. Comedian amy schumer appeared with her cousin new york senator Chuck Schumer as he unveiled new legislation to combat gun violence. The actress says its time to put an end to these tragedies which happen too often. When i heard about this news i was completely devastated, and i wanted to just go down to louisiana. And then i was angry. My heart goes out to jillian and mayci, to the survivors, to the families and everyone who is tied to this tragic senseless action of this man who shouldnt have been able to put his hands on a gun in the first place. Im not sure why this man chose my movie to end these two beautiful lives and injure nine others but it was very personal for me. A gunman shot 11 people, killed two of them in lafayette louisiana during a showing of schumers new movie, train wreck just last month. Chinese shoppers are keeping an eye on escalators. We will show you videos of the accidents and a warning. S