Bernie sanders surging past Hillary Clinton in the new poll. Europes refugee crisis exploding. Germany and austria taking in thousands. Warning they cannot do this for long. Breaking overnight. A kentucky clerk in jail refusing to let gay couples marry launching a new appeal. Good morning. Welcome to early start. Im alison kosik. Im christine romans. Surging ahead of Hillary Clinton in New Hampshire and closing the gap in iowa, look at the latest nbc marist poll. A ninepoint lead in the granite state. Sanders now trails clinton by nine points in New Hampshire. She has a long road ahead of her. Its going to be a fight. Make no mistake about it. Its going to be a hard election. The other side will spend and do and saying anything to win back the white house. I have a little experience with that. I am absolutely confident that whatever they throw at me, i can throw it right back. For more on sanders sudden surge, lets bring in correspondent jeff zeleny. Reporter as we begin the Labor Day Campaign season, the traditional starting point of the campaign season, this is more unsettled. Lets start with the democrats. In iowa and New Hampshire, Hillary Clinton can feel the burn from Bernie Sanders. Bernie sanders is leading by nine points. Here in iowa, where i am, she is only leading by 11 points. That lead is cut in half of over what it was a month ago. The race is on on the democratic side. Thrown into the mix is Vice President biden going to run or not . He met with family members in delaware part of the discussion as he decides whether to jump into the campaign. It is the reason Hillary Clinton is meeting with activists trying to get the democrats to sign on to her campaign. With her poll numbers sagging, Hillary Clinton is turning up the heat on donald trump. Listen to how she ridicules the frontrunners plan to deport all undocketmented immigrants in he wins the white house. He talks about deporting 1 Million People. Someone needs to tell us how. He will say they have to go. They have to stand in line and come back. 11 or 12 Million People . Really . Well, im going to be pressing very hard to get specifics because there arent any. This is the kind of political rhetoric that doesnt belong in our election. Meanwhile, donald trump is holding on to the top spot on the republican side. A commanding lead in New Hampshire. In both said, dr. Ben carson making a strong move. We get more this morning from cnn National CorrespondentSunlen Serfaty. She is in milford, New Hampshire. Reporter we will see some candidates march in the labor day parade. Fresh on their mind is catching up to donald trump. A new poll from nbc marist showing donald trump has a commanding lead. Kasich at number two at 12 and then ben carson and Carly Fiorina both on the rise recently. Jeb bush on the decline in New Hampshire. He has lost half of his support since july and is now polling at 8 here. Meanwhile in iowa, we are seeing donald trump and ben carson on the rise. Trump with 29 . Carson at 22 . Bush in iowa, losing half of his support there, now polling at only 6 . Another candidate who is seeing decline in iowa is Wisconsin Governor Scott Walker who once was in the lead in iowa over the summer. I caught up with walker as he launched his motorcycle tour and asked him about his decline. The person who won the primary four years ago is about at that same point as this point. There will be ups and downs and polling along the way. Our key is to get our message out. Reporter labor day is the unofficial kickoff to the campaign season. Today can serve as a reset button for many candidates who need a lot of momentum. President obama picking up a couple of key endorsements for the iran nuclear deal. Congresswoman Debbie Wasserman schultz and former secretary of state colin powell speaking out. I wanted to reach a conclusion to prevent iran from the Nuclear Weapons goals and weighing all of the information i had. The best thing to do is vote if support of the iran deal. Here is why i think it is a did deal. One of the concerns is we are leaving open a lane for the iranians to go back to create a weapon in 10 or 15 years. We forget they have been on a super highway for last ten years to create a Nuclear Weapons program with no speed limit. In the last ten years, they have gone from 136 centrifuges to 100,000 centrifuges. And president obama took too twitter expressing gratitude. Tweeting, thank you colin for putting your expertise hint this Important Initiative in our country. The acknowledgment of the plan to build a force of moderate rebels is failing. Now dropping rebels with better intelligence and training according to the new york times. And now using f16 fighter jets are being used from the united states. Chinese markets off to the rough start to the week. Market resumed trading after the fourday holiday. Shanghai closed down 2. 5 . It tumbled 40 this year after the high after the corrective process was nearly finished. European stocks higher. U. S. Markets are closed for the Labor Day Holiday. Friday, the dow fell 272 points. The damage report now the dow is down 12 , more than 12 from the record high. The s p fell 1. 5 . Now in correction territory. Worried about the chinese economy and worries over the Interest Rate hike. And the kentucky clerk jail refusing to issue gay couples marriage licenses. What kim davis is now asking the judge next. Looks like we have some sort of sea monster in the water hazard here. I believe thats a kraken, bruce. It looks like hes going to go with a nine iron. That may not be enough club. Well hes definitely going to lose a stroke on this hole. If youre a golf commentator, you whisper. Its what you do. If you want to save fifteen percent or more on car insurance, you switch to geico. Its what you do. This golf course is electric. Mine hurt more. Mine stopped hurting faster neosporin plus pain relief starts relieving pain faster and kills more types of infectious bacteria neosporin plus pain relief kills the germs. Fights the pain. Use with bandaid brand. The kentucky clerk waking up in jail this morning for refusing to grant marriage licenses to gay couples has filed an appeal. Kim davis has been in jail since thursday after defying a federal judges order. Now davis is drawing support from president ial candidate mike huckabee. In San Francisco as mayor, performed same sex weddings although it was illegal. He did not go to jail. You have eric holder and president obama, they ignored the rules of doma. The former arkansas governor plans to visit davis in jail tuesday before holding a rally outside of her detention center. Suspended for refusing to sell alcohol to passengers. She filed a Discrimination Suit against express jet insisting no one should make a choice between their job and religious beliefs. Reporter she converted to islam and then learned she was not allowed to serve alcoholic drinks. She took that to her employer and they worked out an accommodation. Her coworkers would serve the drinks for her. That worked for a couple of months until one of her coworkers filed a complaint saying she was not fulfilling her responsibilities as a flight attendant. That caused the airline to review her case and they suspended her without pay. Now her client has had her u. S. Constitutional rights violations. Express jet did release a statement to cnn that read in part that express jet, we respect the values of our team members. The long history of diversity in our work force. Equal Opportunity Commission has this complaint and they filed an investigation at which point express jet will be given a chance to respond. We asked the attorney for stanley if perhaps her client would compromise and take another job. She told cnn it is not up to her client to accommodate the airline. It should be the other way around. Nick, thanks for that. Breaking overnight. More body parts of a child turning up in a chicago park. Officials discovering a toddlers head in a lagoon at Garfield Park on saturday. A foot and hands were uncovered saturday. Investigators are going through missing person cases to determine if there could be any link to the remains. Thousands expected to attend a funeral for a fallen Illinois Police officer. Services for lieutenant charles gliniewicz. The 52yearold officer was gunned down last week and his killers are still at large. An unidentified man is in Police Custody in las vegas this morning accused of opening fire on two Police Officers who were parked at a stop light sunday afternoon. The suspect armed with a semiautomatic handgun fired multiple around in an suv. His partner chased the gunman and caught him in a parking lot. The minnesota dentist who is accused of killing cecil the lion is breaking his silence. Walter palmer is expected to return to his practice today. He says he has regrets, but insists the hunt was legal. He did not address if he would abide by requests to face questions in zimbabwe. Palmer is not charged with a crime. He also expressed agitation and backlash. He said if he knew the lion had a name and part of a study, he would not have taken it at the time. The midwest is facing severe storms and the west coast facing the heat. Lets get the latest forecast with alison chinchar. We have threats of large hail and damaging winds and isolated tornadoes from cedar rapids to dodge city. The forecast rainfall could see as much as 4 to 6 inches in kansas city. The heat will move back toward the northeast and we are talking near recordhigh temperatures. Hartford and albany and concord as well. One thing we have to keep an eye out for is the u. S. Open. We may be dealing with a similar situation this week. 89 for the high today on monday. The record at laguardia is 90. The record for tuesday is 91. Likely going to break that record high. Ladies, we have to keep a close eye on this with the heat and humidity and how it affects the players. Thank you, allison. Chaos on the borders in europe. Now migrants are facing new issues as the crisis unfolds. Ahead. If you struggle youre certainly not alone. Fortunately, many have found a different kind of medicine that lowers blood sugar. Imagine what it would be like to love your numbers. Discover oncedaily invokana®. Its the 1 prescribed in the newest class of medicines that work with the kidneys to lower a1c. Invokana® is used along with diet and exercise to significantly lower blood sugar in adults with type 2 diabetes. Its a oncedaily pill that works around the clock. 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Its time. Lower your blood sugar with invokana®. Imagine loving your numbers. Theres only one invokana®. Ask your doctor about it by name. A wave of refugees pouring into austria and germany by the how thousands. A growing number of iraqis joining the tens of thousands of syrians fleeing violence and poverty in their countries. Pope francis calling on catholic parishes and relidge ous communities to help those fleeing from war. We have more on this with our senior interNational Correspondent arwa damon on the syria hungary border. We are talking about the people who cannot survive of countries they are leavin and face uncertainty in europe right now. Reporter they most certainly do. Take a look at what was initially a Holding Field for people coming across. About a week ago, they were spending between five to nine hours here. Now the bulk of those you see, they have had to overnight some has spent as much as two to three days. At night, the temperatures here are freezing. There is no proper shelter. A handful of them have imagined to get tents. Thats it. A lot of them have little children. One woman was saying they had to build a fire and they ended up according to her burning some of the clothing they carried to keep the fire going because the kids were going to freeze. You see everyone lined up now. This is something that just happened over the last few minutes. Everyone here hoping that it means that the buses they all have been waiting for are finally going to arrive. You also see a heavy police force. That is because they have been growing frustrated and they have at times tried to walk down the road to the transit camp they are meant to be going to, but we hear that is full and the hungarians are struggling to process the sheer numbers coming through. They cannot handle it. It is increasing by the day. So far the hungarian government despite the horrific scene, is still continuing to refuse the assistance of organizations like u. N. Hcr. There is very little aid out here. There is one station run by volunteers providing water, biscuits and baby food. No proper real warm meals for those who have come so far and they are already so exhausted by the time they get here. They survived crossing the seas and through greece and macedonia and walked through serbia. If we look over here, we see groups continuing to arrive. They are following the train tracks. They are just arriving right now from serbia. This is a constant flow that is not ending. At this stage, all of the measures we are seeing on parts of the austrians and germans, all of the measures are temporary. We are continuing to see scenes like this unfold. Arwa, they have got to figure out how to make it easier. Figure out how they will handle that refugee crisis. They have to do it quickly. From the serbia border to austria, thousands of refugees arriving over the weekend by train. Even on foot. 11,000 in all according to government officials. The policy to let them in could be short lived. Cnns coverage of the migrant crisis continuing with Frederik Pleitgen live in vienna. We are seeing these refugees go through vienna and then germany, but i feel these resources are thin for these countries. Reporter they are, but germany has been willing to take in as many as 800,000 refugees. Interestingly, alison, what organizations are saying, they say europe could deal with a major influx of refugees. However, what they have to do is distribute the refugees to all European Countries and that is the conflict. We are having some audio technical difficulties. We will try to get fred back. He has been amazing reporting from munich. What is interesting, alison, the hub where people are coming in and the refugees were astonished. They got a heroes welcome. A remarkable picture of how countries are responding. Some are opening their arms. To politics in the u. S. New trouble for Hillary Clinton. Bernie sanders leading in the polls in a crucial primary state. We are breaking down the new numbers after the break. Doesnt work on wrinkles. Neutrogena® rapid wrinkle repair has the fastest retinol formula. To work on fine lines and even deep wrinkles in just one week. Neutrogena®. What do a nasca comedian. And a professional golfer have in common . We talked to our doctors about treatment with xarelto®. Xarelto® is proven to treat and help reduce the risk of dvt and pe blood clots. Xarelto® has also been proven to reduce the risk of stroke in people with afib, not caused by a heart valve problem. For people with afib currently well managed on warfarin, there is limited information on how xarelto® and warfarin compare in reducing the risk of stroke. I tried warfarin before, but the blood testing routine and dietary restrictions had me off my game. Not this time. Not with xarelto®. Ill have another arnold palmer. Make mine a kevin nealon. Really, brian . Hey, safety first. 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With xarelto® there is no regular blood monitoring, and no known dietary restrictions. Treatment with xarelto® was the right move for us. Ask your doctor about xarelto®. Dramatic developments in the race for president. A new poll shows Bernie Sanders surging past Hillary Clinton in a key state. Donald trump leading the republican pack, but a new candidate is not far behind. Europe welcoming the migrants, but a new crisis is just ahead. And the kentucky clerk sitting in jail refusing to allow gay couples to marry is filing a new appeal this morning. Welcome back to early start. Im christine romans. Im alison kosik. It is half past the hour. Up first, Hillary Clinton poll numbers heading south. Bernie sanders surging ahead of the former secretary of state in h New Hampshire and closing the gap. Look at the greatest nbc marist poll. Opening up a commanding ninepoint lead in the granite state. Now sanders now trail clinton by 11 points. Clinton led by 24 points in july. The former first lady spending the weekend in iowa campaigning insisting she has a long road ahead of her. Its going to be a fight. Make no mistake about it. It will be a hard election. The other side has said they will spend, do and say anything to win back the white house. I have a little experience with that. I am absolutely confident that whatever they throw at me, i can throw it right back. And for more on sanders sudden surge, lets go to cedar rap rapids, iowa and bring in jeff zeleny. Reporter as we begin the Fall Campaign season, this is unsettled. In iowa and New Hampshire, Hillary Clinton can feel the burn from Bernie Sanders. Bernie sanders is leading by nine points according to the recent poll from New Hampshire. In iowa, where i am, she is leading by 11 points. That lead is cut in half over what it was a month ago. The race is on for the democrats. Voters are looking for alternatives from Hillary Clinton. And is joe biden going to run or not . He met with family members over the weekend in delaware part of the discussion as he decides whether to jump into the campaign. It is one reason that Hillary Clinton is doing house party and doing meeting with activists across the state of iowa trying to get democrats to sign on. With her poll numbers sagging, Hillary Clinton is turning up the heat on donald trump. Listen to her ridicule his plan to deport all undocumented immigrants if he wins the white house. He talks about depaorting 11 Million People. Tell us specifically how that will happen. He says they will go. They have to go over there and stand in line and come back. 11 or 12 Million People . Really . Well, im going to be pressing very hard to get specifics because there arent any specifics. This is just the political rhetoric that doesnt belong in our election. Meantime, donald trump is holding to the top spot in the republican side. Sporting a commanding lead in New Hampshire and less comfortable margin in iowa. Dr. Ben carson is making a strong move. We get more from correspondent Sunlen Serfaty in New Hampshire. Reporter fresh on this mind is catching up to donald trump. A new poll out by nbc marist shows here in New Hampshire, donald trump has a commanding lead. 28 support. That is picking up 7 points from july. John kasich at number two at 12 . Then ben carson and Carly Fiorina both have been on the rise here recently. Jeb bush clearly on the decline in New Hampshire. He has lost almost half of his support since july and is now polling at only 8 here. Now meanwhile in iowa, we are seeing donald trump and ben carson on the rise. Trump with 29 in iowa. Carson at 22 . Bush in iowa, losing half of his support now polling at 6 . Another candidate who has seen decline in iowa is Wisconsin Governor Scott Walker. Once was in the lead in iowa in the summer. I caught up with walker as he launched his motorcycle tour in New Hampshire and asked him about the decline. The person who won the primary four years ago was about at that same point at this point. We have every confidence. There will be ups and downs and polling along the way. Our key is to stay true to who we are. Reporter labor day is often seen as the unofficial kickoff to the campaign season. Today can serve as a reset button for many candidates. Thank you. President obama picking up endorsements for the iran deal this morning. Debbie Wasserman Schultz and former secretary of state colin powell. My number one goal was to reach the conclusion based on what i thought would be most likely to prevent iran from achieving the Nuclear Weapons goals. In weighing all of the information i had in front of me, i concluded the best thing to do is vote if support of the iran deal. Here is why i think it is a good deal. One of the great concerns that the opposition has that we are leaving open a lane for the iranians to go back to creating a Nuclear Weapons in 10 or 15 years. For getting they have been on a super highway for the last ten years to create a Nuclear Weapons program with no speed limit. In the last ten years, they have gone from 136 centrifuges to 119,000 centrifuges. This will bring them down to 5000 centrifuges. I think this is a good outcome. President obama expressing gratitude. Thank you, colin for putting your expertise behind this initiative. The pentagon on the war on isis acknowledging the plan to build a force of moderate Syrian Rebels is failing. Now officials want to drop larger number of rebels in safer zones and provide better training. For the first time iraqs air force is targeting isis positions using f16 fighter jets purchased from the united states. 37 minutes past the hour. Time for an early start on your money. So beijing calls the stock bubble over and the market disagrees. Chinas central bank calling to calm the central fears. The shanghai closed down 2. 5 today. It is now down 40 since the high of this year. European markets are higher. Markets are closed for the Labor Day Holiday in the u. S. The dow fell 272 points on friday. The s p 500 lost 1. 5 . Sitting on the edge of correction territory. The president ordering paid sick leave of federal contractors. President obama will sign an executive order to allow up to seven paid sick days a year. The white house hopes this pressures congress to pass legislation for private sector. That could mean a change for 40 of workers who do not get paid sick leave. Many who dont get paid sick time tend to work in customer facing industries. Think about it. You are more likely to spread sickness if you go to work sick. And be a happier employee. 38 minutes past the hour. The kentucky clerk sitting in jail for refusing gay couples the right to marry. She feels an appeal overnight. What she is asking the judge. Im caridee. Ive had moderate to Severe Plaque Psoriasis most of my life. But that hasnt stopped me from modeling. 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In a medical study, most stelara® patients saw at least 75 clearer skin and the majority were rated as cleared or minimal at 12 weeks. Stelara® helps keep my skin clearer. Ask your doctor about stelara®. Welcome back. Good morning. The kentucky clerk sitting in jail for refusing to grant marriage licenses to gay couples is filing an appeal. Kim davis has been behind bars since thursday after defying orders from a federal judge to issue licenses. She says it conflicts with religious beliefs. Now she is drawing support from president ial candidate mike huckabee. Gavin newsom married samesex couples. It was illegal at the time. Did he get put in jail . He most certainly did not. Did eric holder get put in jail for defying douma . More body parts of a child turning up in a chicago park. Officials discovering a toddlers head at Garfield Park on sunday. A foot and hands uncovered on saturday. A 20 pound weight was found near the scene. Investigators are going through missing persons cases to see if there is any length to the remains. Thousands are expected to attend a funeral for a illinois Fallen Police officer. Services for 30year veteran for charles gliniewicz. The 52yearold officer gunned down last week and his killers are at large. Gliniewicz leaves behind a wife and four sons. Breaking overnight. The minnesota dentist facing a backlash for killing cecil the lion is speaking out. Walter palmer is expected to return to his practice today. He says he has regrets. He insists the hunt was legal. He did not address if he would abide by the requests to return to zimbabwe. Palmer is not charged with a crime. Interesting to see how things shake out as his practice opens. The midwest facing the threat of severe storms this labor day with the east coast feeling the heat. Lets get the forecast from allison chinchar. We are keeping an eye on the Severe Weather mainly in the midwest from mason city down to dodge city, kansas. The main threat for us is the large hail and damaging wind and a slight possibility of tornadoes. The big story, especially in the northeast is the return of summerlike temperatures. We are talking record highs. Concord is the high of 92. Hartford, 93. The record of 93. Boston and new york, also well above average for the next several days. It is the opposite on the other end of the country. We are talking cold temperatures. Freeze watches and warnings in effect for several areas. Yellowstone national park. Yesterday morning got down to 26 degrees. We will see bend, oregon making it down near the freezing mark. A different story on each side of the country. Some heading toward winter and some back to summer. Crisis at the border of europe. Thousands of migrants escaping the wartorn countries only to face new tough challenges this morning. We have new developments as the crisis continues to unfold ahead. [ nurse ] im a hospice nurse. Britta olsen is my patient. I spend long hours with her checking her heart rate, administering her medication, and just making her comfortable. One night britta told me about a tradition in denmark, when a person dies, she said, someone must open the window so the soul can depart. I smiled and squeezed her hand. Not tonight, britta. Not tonight. [ female announcer ] to nurses everywhere, thank you, from johnson johnson. [ female announcer ] to nurses everywhere, thlook what i got. P. Oh my froot loops [sniffs] lets do this . Get up get up get up get up loop me bring back the awesome yeah yeah yeah with the great taste of Kelloggs Froot loops. Follow your nose proteact® advanced against plaque. With plaque guard™ helps prevent plaque and gingivitis, kills 99 of bacteria for a 12 hour shield of protection. Act® advanced. A wave of refugees pouring into austria and germany by the thousands this weekend. Greeted by volunteers and ordinary citizens in germany. And many are fleeing violence and poverty in their respective countries. Pope francis is asking catholics to open their doors to the refugees. Cnn is covering the migrant crisis like no other. We have Atika Shubert live with the latest. You are seeing the refugees coming off the trains in munich. What are they saying to you . Reporter they are relieved to be here. They are, as you point out, getting a warm welcome. This is the first bunch of refugees we have seen come through this morning. This is the process behind me. The Registration Center is where they get identification and fingerprinted and medical tents. If they need medical attention, there are doctors and nurses available. We know there are about 150 volunteers here speaking different languages. Arabic and farci. Anybody who can help the refugees understand what the process is and how to apply for asylum. And the numbers are extraordinary. We know now from the Munich Police that yesterday more than 13,000 came through this region asking for asylum. Extraordinary numbers coming through here. How many challenges are there for germany to handle this influx of refugees coming in at this kind of rate . Reporter its a huge challenge. What germany has said all of this, although the scene is organized, is not sustainable. Chancellor merkel laid out a plan saying jengenera germany w dedicating 3 million euro. There will be more centers built like this, not just in train centers, but more mobile centers. That, they hope, will be able to speed the process of seeking asylum. The fact is germany said it could take 800,000. It wants other eu neighbors to take more. The numbers keep coming. How successful do you think germany will be in convincing eu partners to go ahead and take on the overflow . Reporter well, it will try. It has been pushing for a joint asylum policy now for several weeks and the summit is set for september 14th. Unfortunately, it is unlikely they will all come to agreement. Hungary and poland and slovakia do not want a system forced upon them to take in people. There are so many people coming here that either applaud the refugees as they come and give out toys. Im in the middle of the crowd that people come to give candy and chocolate to show how warmly they are welcoming them in. Still a lot of coordination needed. Atika shubert, thank you. Our coverage of the crisis continues with arwa damon at the serbia hungary border. You are literally watching the refugees following the train tracks to get to where you are. What is the situation where you are now . Reporter they still continue to come in. This is the situation at this socalled temporary holding area. This is actually a place where you see people who ended up spending the night if not up to two to three days. They just received a little bit of food aid coming in. Bread, apples, granola bars. That is from a small nonprofit that is doing all it can. Everything it has been distri distributing has been donated. It is bitterly cold here at night. As you can see, there are some tents, but they are not providing warmth. Most families are spending time in the cold. The kids are already sick and these conditions are just making them sicker. This has been such a very long and difficult journey. This is a 3yearold. This family is from syria. We were speaking to them earlier. They were telling us about the hardships of trying to make things work in syria. They like others did not want to leave home. They had to because of the conditions. They could not live there any more. That child, her family believes if she stayed back in syria, they would end up dead. That is why they are here. If we come over here, the flow doesnt end. It does not stop. There are constantly people following those train tracks we showed you earlier and we do want to bring that shot to you again because when you look at it and realize the enormity of the problem, that is when it sets in. The dire need for immediate action on the part of various european leaders. Look, here is the train track we showed you just a short while ago. Here it is again. This flow is constant. Even though there is a backlog of people here. We hope the buses will show up soon. They get people out. There are more still coming across. These are all people equally desperate and hoping to reach that life that they think will give them and their kids a future. Arwa damon, thank you. Human Rights Groups say europe should expect this for some time. I tell you, this weekend, a lot of people talking. Peter king, a new York Congress member, says if the u. S. Admits more refugees, terrorists could come in. The marathon bombers were given refugee status. All right. We will be right back. Yoy think its a result of brushing too hard. Its not. Its a sign of early gum disease. Listerine r can help reverse. Early gum disease in just two weeks. Listerine r . Power to your mouth™ announcer babies who are talked to from the time theyre born. Are more likely to have a successful future. Talking and reading to children in their first years has a huge impact on what they do with the rest of their lives. The fewer words they hear, the greater their chances of dropping out of school and getting into trouble. Talk. Read. Sing. Your words have the power to shape their world. Learn more at first5california. Com parents dramatic developments in the race for president. Bernie sanders surging past Hillary Clinton in the latest poll. Is the former secretary of States Campaign in trouble. Good morning. Welcome to early start. Im christine romans. Im alison kosik. Up next, Bernie Sanders surging ahead of Hillary Clinton and closing the gap in iowa