she is the first german to win a tennis grands slam title since stephi graff in 1999. as always, there is more on our website at aljazeera.com. there are all the stories we're following there. count down to caucus day acknowledge the course of this country's political future. just three days before the iowa caucuses and the democratic and republican establishments are scared to death with donald trump leading the gop and bernie sanders on the verge of an upset against hillary clinton, party insiders are in trouble. tonight we'll talk about how the final days of iowa campaigning debating and not

debating might affect iowa caucus-goers support. democrat and presidential nominees. but we're going to begin with the republicans and this debate last night in des moines, an event donald trump boycotted after a spat with fox news. texas senator ted cruz was running second in the polls had the most to lose and delivered a flat, poor performance. analysts say florida senator marco rubio and former governor jeb bush did better. here is a lock at some of the highlights. >> this is lie that ted's campaign is built on and rand touched upon it, he's a conservative guy and everyone else is a rhino. ted you've been willing to say and do anything to get votes. you worked for george w. bush's campaign. you helped design george w.

bush's immigration policy. >> marco made the choice to go the direction of the major donors to support amnesty because he thought it was politically advantageous, i honored my commitments and as president i will honor every commitment that i make to the men and women of this country. >> it's interesting that jeb mentions the book. that is book you changed your approach to immigration. >> so did you marco. >> chris i was mentioned this that question. >> your name wasn't mentioned. >> i your name was mentioned. sir i think the vote -- the question was about -- >> what is your question? >> it's not my question you get a chance to respond to. it's his answer. you don't get 30 seconds to respond to me. you don't get 30 seconds to respond to me [simultaneous speech] >> i know you like to argue about the rules but we're going to conduct the debate. >> at the very same time as that debate donald trump was just a few miles away holding a benefit

for vet veterans but instead of beginning talking about veterans he started talking about you guessed it himself. >> i didn't want to be here , let's be honest. i wanted to be five minutes away, i've enjoyed that, all the online polls said i did well in the debates and i've had a kick with it. but when you are treated badly you have to stick up for your rights to have to do it. [cheering and applause] >> and whether we like it or not, whether we want to do or not that's something our country has to do. as an example, iran, all they've been treating us, this deal is one of the worst deals i've ever seen negotiated under any circumstances and we just take it. we have to stick up for ourselves as people and we have to stick up for our country when we're being mistreated, remember that. >> our own michael shure was

there at iowa and he joins us from des moines. what was it like being at the donald trump event last night? >> it was kind of surreal david, there was over 350 people in the press there, they had planned to be at the debate and were boycotting the debate by having to see the donald trump event. people were expecting a little bit of a splash, a little bit of what they are familiar with donald trump doing, a little side show-ness, there wasn't much of that. a little bit later, when rick santorum and mike huckabee showed up after their undercard debate, trump offered them to speak. santorum standing at the podium with a donald trump sign, it doesn't get more awkward than that. >> michael you have been talking to folks there in des moines. what's the reaction in terms of donald trump not being there participating in the debate how

is it playing today? >> you know it seems like a net zero effect david, a lot of people thought it was a good idea for him to miss it. he was so up, it is a risk at best, ted cruz play have a chance to shine when he was the one that everybody is attacking. a lot of people did leave the debate last night talking about jeb bush, not so much marco rubio and ted cruz. a headline ran, said "a bad night for cruz." just the fact trump wasn't there allowed people to talk about things in a much more substantive way. 34% of iowa republicans remain undecided, of course people in iowa wait until the very last minute or a good chunk of them to make their decisions so with numbers like that it was a chance for the candidates to depaid and be heard. jeb bush was a good night, the bar was low so a good night for

him last night may not be a wild night for jeb bush. >> i heard a forklift or smoke detector going on behind you. are you okay, what's going on there? >> i'm at the microsoft center david which has been set up for caucus night. it is where results will come in and be tabulated. chances are there is a forklift behind me, they had to lift me up on a forklift. it is a matter of them receding down now. >> is ted cruz one of the best sorgd i organized in iowa, donald trump not so much. are you picking up that? >> it's true that ted cruz will have gone to all 99 counties, doing the full grassley, as they call it, tying his tail to the

jesus vote last night talking a lot about religion and what he is trying to do pick up some of ben carson's croatben carson's votes, his pee think can he get to second but the conventional wisdom is that a strong third will give him the momentum going out to new hampshire. his organization not that of ted cruz or even donald trump, cruz certainly the most organized david. >> michael, we'll be talking about the democrats with jeannie zano in a minute. i want to remind you of a bet that you and i made earlier this week. listen. >> if she doesn't win by 33%, double digits, then you have to sing an apology. >> i'll do that. >> a life line we're giving you there, do you want to take that back? >> david, i would never walk away from a bet.

i think you know that. today there was a public policy poll that was released that showed hillary clinton up by 8, you should practice your scaims and we'lscalesand we'll see. >> michael shure, we'll see you monday night. >> thanks david. >> the democratic debate has not made the same splash but that doesn't mean hillary clinton and bernie sanders are not on television. the iowa war is fears and the numbers are intriguing, that's next. we'll answer the question, why iowa, anyway? >> a critical first step on the road to the white house. >> you have to find common ground. >> i'm doing what's right for you. >> that's the kind of debate that we need to have. >> stay with al jazeera america for... >> it's going to be about

getting people out to the caucus, which is not an easy thing to do. >> comprehensive coverage that's... >> the focus will be on south carolina tonight.

>> in the iowa caucuses on the democratic side, all the polls indicate that hillary clinton and bernie sanders are lacked locked in a virtual dead heat. the sanders campaign has purchased a huge amount of ad time through monday. concentrating on goldman sachs, although the ad doesn't mention clinton by name, sanders frequently criticizes her after she was paid $675,000 she gave

for the firm in 2013. watch. >> how does wall street duet away with it? millions of campaign and speaking fees. our economy works by wall street because it's rigged by wall street, as long as washington is bought and paid for, we can't have an economy that works for people. >> i'm bernie sanders and i approved this message. >> touting her years of experience like the sanders ad, clinton doesn't mention her opponent by name but it references the affordable care act and the need to stand up to america's powerful gun lobby, two things clinton says sanders has failed to do. >> she'll build on obamacare, not reduce it, stand up to the gun lobby, not protect it, lead on foreign policy not ignore it. >> helping us break this all down is jeannie

zano. thanks for joining us. let's tart with the clinton contrast ad, what do you make of it? >> i think hillary clinton is supporting the people who feel bernie sanders, he's a one note pony. you heard the president say that pretty much last week, the focus on economic inequality is important but not the only issue out there. you hear hillary clinton saying that over and over. she's talking about gun control, foreign policy her readiness to govern. the clinton campaign is going with what they know are their strengths and cognizant of their weaknesses as well, she's trying to say listen we need somebody with experience and somebody who can handle a variety of issues and she's hugging president obama as she's been doing throughout this campaign. >> it does seem strange to think of a democrat considering it a strength to say hey i will build on the affordable care act not start over.

where bernie sanders supports single payor which a lot of progressives want. >> it's interesting, hillary clinton is trying to make the case that bernie sanders will just want to wipe it all away and start from scratch and go it all again which most people know will not be the case. but many people know she's going to continue president obama's policies, she's hugging close to the president saying she's the third term of barack obama and betting this is going to be a winning strategy in the primary. if she does succeed in the primary is getting that close to the president a winning strategy in the general election? because as we know third terms of presidents are not common in the united states. so it's going to be an uphill battle in the united states if she gets that far. >> bernie sanders, there's been some debate in his campaign about running a contrast ad against goldman sachs, he decided to go for it. reminding everybody of her ties to wall street, is that ad

effective for him? >> i think it is effective but it would be more effective had he gone there, and he's going there halfway, i'm not sure that's a winning strategy. we've known for a long time that her ties to wall street are hillary clinton's achilles heel if you will. he is banking on the fact that this is going to be what moves progressives away from her. i think had he tied her more directly it would be more effective but any progressive they know this is all about her and you know, i think another issue that he needs to touch on is the fact that people don't trust her. they see her as a quote unquote establishment politician if you will. and that is something that people who are supporting bernie sanders find objectionable about her, particularly young people. >> a th lot of young people in a see these things as aspirational.

how does that cut with bernie sanders with the aspiration of single payor and pragmatism of being able to work with the other side. do you get a sense that cuts a certain way in iowa? >> democrats, their hurt wants to go with bernie sanders because as you mentioned its aspirational, all the things they would hope to achieve in a perfect society. but she's probably going to be facing a recent senate narrowly and a republican house, and you have to deal with that when you get in. and that's the pragmatic thing they have to deal with. but not only winning the nomination but the actual general election. is bernie sanders equipped, a democratic socialist, is he somebody who's electable among the general public? many democrats in the

establishment thinks that's not the case. the democrats feel very torn, not like they did in 2007 with barack obama but certainly torn in a certain way between their heart and their mind if you will. >> and as they're trying to resolve this you've spent a lot of your career looking at polls and numbers. do voters change their mind very much in the final three days before a race like this? >> we do know that voters in iowa make up their mind and quote unquote break very late. the possibility is that the polls are not accurately reflecting what the caucus goers will do. this is going to be a battle of turnout, pollsters telling people what they would like but people who go out at 7:00 on monday night and talk about the race and katz their vote in a quite public forum. it's quite different than talking to a pollster. who's going to get out there? for hillary clinton she's got more establishment support

they're more likely to go out. and bernie sanders has this energy and those voters may be willing to go out because they are so moved by his message. we are going to have to wait and see but the weather doesn't help. >> the weather will be perfect in studio. jeannie, thanks as always we appreciate it. one of the biggest questions about the kickoff caucuses is why iowa? the state's population is smaller than that of the city of los angeles. but it carries an outsized influence in the political universe when it comes on weighing in on presidential contenders. mary snow has a look. >> yes it's well-known that iowa is the first in the nation to weigh in on the presidential race but less well-known are the quirks behind its caucus system. starting how it became such a draw for white house hopefuls. >> we have won a great victory today. >> in 1972 it was only by chance

that democrats in iowa scheduled their caucus earlier than everyone else. >> good morning how are you? >> in 1976, republicans in this state joined them. >> i'm running for president. >> when jimmy carter did well that year in iowa and been on to win the white house, iowa cemented its first in the nation status. and drake university's dennis goldford says, unlike others, iowa voters cast their votes over a period of the night. >> you have to spend a couple of hours, you hope there's no blizzard, the car starts and there's nobody sick in the family. >> public places like schools and other buildings, in a rural

area, a caucus might be held in a single home. republicans have the more straightforward process. after hearing from surrogates for candidates they write their choice on a piece of paper. votes are counted and reported to precinct officials. for democrats its mo complicated. >> people physically have to stand up for their preferred candidate. so in this year's three person race they will say everybody in favor of hillary clinton go to that corner, everybody in favor of bernie sanders go to this corner. everybody in favor of martin o'malley go to this corner and everybody who is undecided or undeclared go to another corner. those are called preference groups. >> in order to be viable a preference group has to have a certain percentage of support of those present at the caucus. if it doesn't pleat the threshold the group is dissolved and others try to win over its members. >> people are enticed to go over

even if it's a preference group for hillary clinton. sanders would go, you don't really want to support her you want to support bernie. so there's a lot of horse trading and cajoling. it's interesting to watch. >> iowa had egg onists face in 2012 when party leaders declared mitt romney the winner of the republican caucus. >> first place we had governor mitt romney with 274 votes. >> only to announce two weeks later there had been a miscount. rick santorum was the actual winner, and that mistake many argue cost santorum valuable momentum. mary snow, al jazeera. >> coming up, the fight against the crisis of epidemic proportions.

>> on thursday the world health organization announced it would be holding an emergency meeting to discuss the zika virus. which has been exploding exponentially. it is leaked to guillan barre syndrome,

and peril sis. ebola claimed more than 11,000 lives. one of the hardest hit countries was liberia. a tragic story of one liberian village's fight after a man brings his sick child to the facility. >> knowing what to expect is still impossible. >> i always keep it at the back of my mind that ebola is very deadly. so i don't come in contact with my patients, i do interview them from a distance. so i always take my preventive measure by not touching my eyes, nose, and mouth. and then i protect them when i'm in the field.

how are you? >> karl is the film's director, karl welcome. much of the international media coverage was about the international aid, this is a very different look. is that what inspired you to make this film?

>> there are a couple of other people whom i followed around in the film. indeed i wanted to get the liberian perspective. international relief effort is very important but the work, the crucial work being done on the ground is done by the local people. and they made the difference. they fight the fight on the front lines. and they are the ones who actually ended the epidemic. and i wanted to give them a voice and i wanted to qua convew it feels to be in the midst of the epidemic from their perspective. >> it's remarkable. stanley essentially brings his son to a village, 12 people die because his son had the virus. what happened to stanley? >> he survived. he couldn't go back to the village because the villagers were very, very angry in fact there were some people who wanted to kill him.

so after having survived ebola there started a new ordeal, he had to go into hiding and he had to seek the help from a pastor to enter negotiation, a dialogue with his village, so that eventually, he asked for forgiveness and whether he could return to the village as well. >> you have pointed out that the traveling to an ebola hot spot, there are comparisons to a war zone. what did you mean by that? >> well, to a war zone, in a a way it's an extraordinary situation. but the comparison to a war zone in a way it's -- well it's differently to a war zone because in a war zone you are -- there is a lot of element of randomness you know? if a grenade hits you can't do much. with ebola actually if you followed a certain set of strict rules you were relatively safe. so you didn't have this element of randomness. but again, the situation was extraordinary.

nobody lived a normal life. everybody was affected one way or the other by this outbreak and that of course is an extraordinary situation which can be compared to war, yes. >> finally what was the biggest surprise in making this film? >> the biggest surprise was the resilience of the liberian people and how quickly they changed their habits and their traditions. mind you, ebola was transmitted through very close physical contact. which is important because people care for one another in families and so on. and the traditions was burials. and the people had to accept the reality of the virus very quickly and had to change their habits and parts of their culture very quickly. i was surprised how quickly that was done, people understood the threat, changed their behavior and eventually that brought the

epidemic to an end. >> you can watch in ebola's wake, this sunday. i'm david schuster in for ali velshi, thanks for watching. incarcerated with older inmates who they say brutally assaulted them. >> grabbed me around my neck and he told me he was going to. [ beep ] me. >> what we heard in the videos made us get to a plane to michigan. it was the starting point of our investigation in to the treatment of youth in the adult criminal justice system. >> we are now on the record. this goes the videotape deposition of john doe number one. >> and it began with an inmate that we'll be referring to as john doe one. >>