♪ hi, everyone, i'm john siegenthaler. the polls close in an hour, in wisconsin, the site of tonight's only primary. ted cruz and bernie sanders are leading the polls and looking for wins they hope will shake up their respective races.

michael shure is in milwaukee tonight. you are at ted cruz election night watch party. but his competition donald trump is not even in the state. so what does that mean? >> reporter: that's right, john. good evening to you. he is not doing anything in wisconsin, though he did spend a significant amount of time, especially for donald trump in the state of wisconsin. but what people were watching with donald trump was how he engaged the electorate here. we was running against scott walker and paul ryan. the hashtag of never trump has been working against him for quite a while in this state. he got out of here because the pollsn't have been good, but his message is still resinates. the polls do have ted cruz up with the exception of one outlier. what donald trump has to do is try to win some of the

congressional districts. but this is a lot different than what we thought after the michigan primary where he did so well. another thing to watch, john, before marco rubio got out of this race, donald trump was polling at 33%. if he doesn't get above 33%, that means he wasn't able to get any of the rubio support he thought he would get. >> ted cruz and donald trump spent a lot of time trying this week trying to get john kasich to get out of the race. why do they care so much? >> reporter: well, it's a really interesting thing that is going on. everybody is looking to july in cleveland, john, and the convention. what they want john kasich to get for is different reasons. donald trump sees him as a impediment to getting enough delegates. but they also look at the calendar. there are new england states,

rhode island, connecticut, delaware, those are the types of states where john kasich could do well. the more of a chance he has of getting delegates in those states the less of a chance donald trump has to getting to 1237. and for ted cruz he wants to make sure he is the viable alternative because he wants to challenge donald trump at the convention. if the narrative changes in those states, then he makes a big problem for ted cruz. >> it is expected to be a tight race as well for the democrats. bernie sanders polling ahead of hillary clinton but within the margin of error. even if he wins wisconsin, he is still far behind in the delegate race. why would a victory in wisconsin be that significant for him tonight? >> reporter: well, i hate to be trite, but because it's not a loss. because it allows him to continue that narrative, to continue taking the american democrats that he has a chance of winning this.

the more he loses the less likelihood he has only winning the -- nomination. he can say we won, and now we're going to new york. he needs these wins. he needs to keep some kind of momentum to have a chance and tell his supporters and donors that we're in this and we're in it to win it. >> it appears he had a bit of a stubble in an interview today. he was asked about breaking up the big banks, and talk about what he said or didn't say. >> reporter: yeah, he created a lot of trouble with himself in an interview with the daily news in new york trying to get that endorsement for the april 19th primary. he was saying he didn't really have a plan as to how he would break the banks up. he talked about getting the fed involved. he talked about the white house

being able to do it, but without congress how could he do it. he was talking about the authority to say we can break up these banks. he didn't have solid answers on that. later he got into it with chris murphy talking about gun legislation. chris murphy has been a proponent of having gun manufacturers -- having people be allowed to sue gun manufacturers when there have begun deaths. sanders said that is not the case. he doesn't want to do that. and then chris murphy said he doesn't want a candidate who is squishy on the issue of gun control. so those sorts of things will continue to hurt him. >> michael thank you very much. for a look at what else is at stake tonight let's bring in david shuster. >> the delegates are awarded a bit differently between the

democrats and republicans. let as suppose bernie sanders wins over hillary clinton, he would win 50 to 36 in terms of the delegates, so what he is trying to do -- again, hillary clinton is going to gain delegates even if she loses, but bernie sanders is trying to narrow the overall delegate lead that hillary clinton has among delegates. the theory for bernie sanders is if he closes this pledge delegate number, 263, he is behind going into tonight. if he closes this by the convention, the theory is the superdelegates would go with whoever has the most, and if that's him, he can capture the nomination. in order to close this gap, he needs to win about 57% of all of the pledged delegates that are left starting in wisconsin and then moving on, of course to the big contest. michael mentioned new york coming up in a couple of weeks, pennsylvania, california.

again, keep track of the margins, because it's not enough for him to win out, he needs to win and close this overall delegate lead. in terms of the republicans it is winner take all, sort of, in wisconsin. 42 delegates at stake. whoever wins, you are going to walk away with 18 delegates, and then there are 24 remaining. there are 8 congressional district, the winner of each wins 3. donald trump looked like he was going to do pretty well in two districts in the northern part of the state. let's suppose ted cruz wins, donald trump can still add to his delegate lead. and every delegate is going to matter for donald trump, because in terms of the larger number overall map, the 1237 donald trump needs to capture the nomination before the convention. there's no way that ted cruz is going to be able to close this gap with donald trump.

the question will be whether ted cruz with the help of john kasich, whether they can get donald trump from getting the 1237 he needs to lock in the nomination before the convention. it becomes steeper for donald trump get to that number if ted cruz wins tonight. but again, the entire idea for the republican establishment is keep donald trump from getting the magic number before the convention, and then you perhaps take this away from donald trump with second and third ballots at the convention, which perhaps anything goes. that's the theory, there is simply not enough votes for john kasich to get there, but they can keep donald trump from getting the 1237, and we'll know tonight if this is a much more steeper climb for donald trump based on what happens tonight in wisconsin. >> all right. david thank you very much. joe watkins a former white house

aid and senior vice president of elected face, and he is in philadelphia. joe, the pundits are calling this donald trump's worst week of the campaign. do you think that actually means anything? or not? >> i don't think so. not much. he did not have a good week, and there's no doubt about that, but what really matters are -- is the hunt for the delegates, and so each primary -- this is like its own separate election, and all donald trump has to be concerned about now is not how he does in the media on any particular week, but how many delegates he is able to win and how well he is able to do in these primaries. >> but when you look at this, donald trump keeps saying it's over if he wins tonight. but ted cruz and john kasich are vowing to fight until the convention. is that the reality we face no matter what the outcome tonight?

>> i -- i don't know about that. i mean obviously if he doesn't win tonight, it certainly slows down his momentum, but he has still got a pretty significant lead. and there are some states left on the map that benefit him more so than ted cruz. so the question comes how much can the others slow him down? i think he's in -- still in very, very good shape from the standpoint of heading towards that 1237 number. he may not get there by the time of the convention, but it will be awfully difficult. the tender part becomes how does the republican party treat him if he doesn't have the 1237 at the convention? and if he is not treated fairly, at least in his mind, there's always a possibility that he might launch a third-party candidacy, which would not help republicans. >> do you think that a real possibility? >> i think so. i think if the convention were

fractious and there was a lot of visible fighting and if trump and his supporters felt they had been unfairly treated, you might very well say donald trump say i'm going to launch my own third-party bid for the presidency. and that would be a very serious bid for the presidency. he has already a lot of support. there's no telling how many would follow him into a third-party candidacy. >> her wife says she is going to be out on the campaign trail more. why do you think? >> certainly it helps soften the tone. he was beaten up this past week because of the inflamed discussion, the way he talks, the combative of the campaign, and having his very attractive wife with him on the trail, certainly softens his image.

it makes it harder for people to fight with him a her as well, and gives people a chance to know her better. >> bernie sanders has been outraising hillary clinton for three consecutive months. and in the beginning you heard democrats making fun of the fact that donald trump might be the nominee, and now it appears that hillary clinton and bernie sanders are locked in this sort of death battle for the nomination. what -- what do you think it means for the democrats, really? >> well, i still think that hillary clinton has the advantage. i mean bernie sanders has done extraordinarily well, he has got what really amounts to the same kind of movement that president barack obama had in 2008. people who are very, very dedicated to him, who believe in him, and who are willing to send him week after week small checks to keep his campaign afloat. so he has all of the money that he needs to really fight a campaign battle. the hard part becomes the

delegate math. he lags significantly behind hillary clinton. i don't see that there's any way for him realistically to catch up with her. and new york is a state where she served as a u.s. senator. and she has strong support there. so it's going to be hard, i think. >> so you really don't think you could have a contested -- a contested convention with the democrats and the republicans? >> not likely. i mean it could happen. but i don't think it happens. i think at then of the day, you know, bernie sanders certainly gives hillary clinton a really tough fight, moves her a little bit more to the left than she would probably care to be moved, but ultimately i think she wins the nomination, and at the end of the day a number of his planks are adopted because of the strength of his showing. but i think she ultimately wins the democratic party. >> joe thank you very much.

>> thanks so much, john. president obama is praising new efforts by the treasury department to crack down on corporate tax inversions. the practice involves u.s. companies purchasing smaller companies in other countries in order to pay a lower tax rate. >> reporter: this is something that president obama has been talk about. it is a practice that has been raising eyebrows recently, particularly with a very high profile case the pharmaceutical giant pfizer, a potential merger with a much smaller irish concern. the purpose to potentially avoid as much as $40 billion in u.s. taxes. alergen, a smaller company. yesterday the department of treasury cracked down on tax

inversions putting forth new rules that would stop that pfizer transaction as well as potentially many others. and president obama appeared in the white house briefing room to back it up. >> that's why i have been pushing for years to eliminate some of the injustices in our tax system. i'm very pleased that the treasury department has taken new action to prevent corporations from taking advantage of one of the most insidious tax loopholes out there. >> reporter: he was asked about the panama papers, the million documents unearthed through a series of leaks, exploded by investigations by an international consortium of journalists, showing that many of the rich and powerful around the world are hiding their money. and president obama said it should be made illegal to try to move money around. he says that all transactions that are made for the purpose of avoiding taxes should be made

illegal. john? >> mike, thank you. the panama paper scandal has claimed its first victim. the prime minister of iceland has resigned over the leaks. >> reporter: it is as far as you can imagine, but the attempting by the prime minister here to help hide his wife's wealth there, has finally caught up with him. ana runs an ice cream parlor. >> yeah, it's very sour and bitter, and how do you say -- >> it leaves a sour taste in your mouth. >> yeah. yeah. bitter taste. like we all feel today. >> reporter: is that how you feel about all of this? >> yeah, i'm sad, and i am ashamed. i'm a shamed to be an icelander.

>> reporter: the prime minister walked out of an interview, spent monday saying he wouldn't resign, and then spent tuesday saying he would if his party doesn't support him. >> there is no -- no meeting in the parliaments, no chamber meetings or committee meetings because people feel the parliament cannot function in this state of crisis. we have a full-fledged political crisis that needs to be solved. and everybody except the prime minister himself recognized this is doing tremendous damage to the reputation of iceland in the international context. >> reporter: the furious protests reflects a sense of betrayal among the people. stalled construction projects have restarted as the country's economy picks up. yet the banks remain week.

and there is a limit on how much people can take out of cash machines, and the fact that the prime minister has been helping hide tens of millions of dollars far away is for many people infuriating. in misquoted shakespeare on the t-shirts in the shops, and this one reads, not my prime minister. soon he may not be. lawrence lee, al jazeera. pope francis could soon get a first-hand look at the refugee crisis. greek church officials have approved the pontiff's request to visit the center of the refugee camp influx. and greece is preparing to send another group of refugees back to turkey. zana hoda reports. >> reporter: greece's migration office confirming that for the time being deportations have been suspended. what we understand is that the numbers are not sufficient to

send people back to turkey. the majority of people who are locked up in detention centers, there are approximately 3,000 of them, want to apply for asylum, so you cannot put them on boats and send them back to turkey until being given the chance to apply for asylum, and we know the system is still not in place. the e.u. asylum office confirming that they are sending more staff to greece's island on wednesday. judges, lawyers, interprettors to try to speed up the process, but the officials saying this process will not formally start until the end of the week. so-so far those sent back to turkey did so voluntarily. but people in the detention centers are growing increasingly anxious. they are worried, uncertain of their future, but this is going to take some time, greek officials say the normal process lasts three months for a case to

be looked into, but they are promising to speed up the process, and the 3,000 who are locked up in detention centers, they are not among the 50,000 who are stranded in greece, and those people are not part of the e.u.-turkey deal. >> zana hoda reporting. today china announced new restrictions on trade with north korea blocking imports of raw materials like coal, oil, and iron. yesterday north korea posted a video, titled if the ultimatum goes unanswered. it depicts an missile attack against seoul. china's sanctions are in support of the u.n. effort to isolate pyongyang which has issued threats against seoul and washington. coming up next, opening up markets in cuba, how american businesses might benefit from closer relations. and how a hike in marijuana will lift a struggling local economy. a colorado community votes today

on whether to legalize pot. ♪

lawmakers from louisiana and arkansas head to cuba tomorrow

to talk about the future, by focusing on the past. at one time most of cuba's imports and exports passed through the thriving port of new orleans. many hope that trade will start again. jonathan martin has the story. >> reporter: american businesses have been cut off from trade with cuba for more than half a century. many americans still see the castro regime as an enemy, but others are hoping to capitalize on a new market. for this fourth generation louisiana farmer, it's promising. before the u.s. trade embargo in the 60s, cuba was the largest importer of louisiana's rice. >> it was almost the size of louisiana's whole crop. so as you can see, it would be significant if we could -- if we could get back to what we were doing before. >> reporter: with louisiana's por por ports straddling the mississippi

river. it is in a prime spot to trade with cuba. on the heels of president obama's trip to the nation, this week, businessmen from louisiana and arkansas are visiting cuba in hoping of reestablishing trade. >> we expect 15 to 20% increase in sales of louisiana products. louisiana products going into cuba. >> reporter: opening trade with cuba could add millions to the state's economy and create jobs, but critics say as long as fidel castro maintains influence, opportunities will be few. >> he will block trade with the united states. he told president obama in that editorial the day after president obama left cuba, he said, cuba doesn't need anything from the empire. he considers the united states

the empire. >> reporter: george fled cuba in 1960. he is now an attorney for the cuban american foundation. he says opening trade does nothing for the people still struggling in cuba. >> cubans make $30 a month. so they are not going to buy rice. >> reporter: kevin says he too is sensitive to the needs of those in cuba. >> we're the ones, in my opinion, that are getting hurt from not being able to trade with cuba. rice farmers -- i mean they get their rice from some wheres else. coming up next on the broadcast, as voters in wisconsin go to the polls an iconic factory gets ready to close its doors. how the issue of jobs is affecting the vote there. and putting a jolt into auto racing, how electric cars are

gaining speed and setting records.

poles close in wisconsin in half an hour, and in today's-only presidential primary, ted cruz and bernie sanders are looking for wins to keep their momentum going. the loss of manufacturing jobs a major issue in this election. michael shure is back to explain. michael? >> reporter: yes, john. that's exactly right. it's an all-too familiar theme, a factory or business closing

down, jobs being lost, and it's no different here in wisconsin, and it's fell particularly hard as they go to the polls today, and what we are seeing here in madison is a very familiar brand, an iconic brand as you said before, that is going to be closing down four days before american voters go to the polls, wisconsin will be saying good-bye to a venerable employer. ♪ my baloney has a first name, it's o-s-c-a-r ♪ >> for generations of families in madison wisconsin, oscar meyer meant jobs. all of that is meant to change when after 97 years, kraft heinz, the parent company closes this plant. >> when i got in there, you thought if you get in, you have a lifetime job. >> reporter: he worked in the ham bone division of the plant. but for the past 35 years he has

owned wiggies, a bar that caters to what he calls oscar guys. but in the manufacturing and processing economy nothing is forever. this man teaches business at marquette university. >> if you look at wisconsin this is what we have seen in the last couple of years, a number of firms have decided to move out of wisconsin. >> reporter: it's the places they leave behind that feel the pain most. >> it devastates a community that has been here forever. >> reporter: doug is president of ufcw538, the union that stands to lose nearly 1,000 wisconsin jobs when the plant closes. >> this side of town is just going to be hurt. i don't know what they are going to be able to do. >> when they get rid of everybody, there will be 770 some checks that won't be cashed in the community. everyone is going to -- i think the triple-down effect is going

to hurt the worst. >> reporter: oscar meyer has been a mainstay in wisconsin. with the plant only a few miles from the state capitol, many wonder if scott walker, or the madison mayor could have done more. >> it's funny if you listen to the liberals that talk they said walker did it, and if you listen to the conservatives, they say the major did it. >> reporter: doug knows where the blame does not belong. his workers did everything that was asked. >> the productivity goal stated by the company were $30 million. and our work force gave that to them, and it wasn't due to increased technology or machines, it was on the back of our workers. >> reporter: this professor says america may have to get used to this. >> the reality is that things have changed, okay? for example, some of the manufacturing jobs that we talk

about or our parents used to talk about, those are not going to come back. >> reporter: that's a reality that is not easy for doug. i asked him about the future, his kids. are they scared for their dad? >> no, i'll take care of myself. >> reporter: is there a new resolve you have now? >> i don't know if we have a resolve, but we're going to survive. we'll get jobs, and we'll be all right. >> reporter: john with the plant having been here for nearly 100 years, it was hard to find anyone who has been here for one or two generations who didn't know someone who worked in that plant. >> an important political issue in this campaign. all right. michael, thank you. dave joins me from washington. dave if trump wins tonight, does cruz have any momentum to stay in this race? >> he might not have a whole lot of momentum going into some of

the other critical contests that still have yet to be waged, but it boils down to one thing, and one thing number. it's 1237, the number of delegates you have got to get to walk into the convention in july, and be able to secure the no, ma'am makes. so really for donald trump it's trying to gobble up as many delegates as you can, and for ted cruz and john kasich, and anyone who wants anyone but tramp to be president of the united states on the republican side, it's all about blocking trump and get as many delegates as you can to deny trump that magic number. >> so if cruz wins tonight, does that mean he help deny trump? >> it absolutely does. it is going to be that many more delegates that donald trump won't have, and is going to have to get in other states, be that new york, california, or any of the many states left yet to hold

their primaries. wisconsin is a critical state, not only because it is the only one we have today and for a few days on the republican side, but it is critical because there are a number of delegates up for grabs tonight and if donald trump comes -- away with empty hands, that is going to spell trouble for him. >> how much money does john kasich have to stay in the race? >> he is says in the race, because his only hope to become the nominee is in a contested convention. but he doesn't have much money come in at all, he is hoping and dreaming that the convention in july is going to be one that will be contested, that will go to perhaps a second, third, fourth, ballot, and he can come in and say, look, i'm leading in

all of the national polls, i'm beating hillary clinton in a election scenario. i'm the only one. so at this juncture he can lay claim to that fact. he is the one on the republican side who is giving hillary clinton the best run for her money. in that is his biggest play right now, although he doesn't have the support for the donors or the super pacs. he doesn't have a whole lot of that either, although there is a little bit boosting him up in some states. >> plenty of surprises this election year. many people didn't think donald trump would lead in the race for the nomination, and now hilary and bernie seem to be locked in a slugfest, and most people didn't expect that. why? and why are the democrats behaving like this? >> well, on hillary clinton's side, she would love for all of this to go away, right now. she would love to be able to

turn to the general election, and focus on beating up on republicans, and going straight to november doing as well as she possibly could, without having to have this intermural fight. but bernie sanders is raising even at this point in time, considerable amount of money from tens and tens of thousands of donors who are giving him 10, 20, 30, $50, and keeping his campaign alive and vibrant as well. the math does not look good for bernie sanders. things are beginning to get bleak because he is running out of time and delegates, but it still is a mathematical possibility that he could become the nominee, and until that is shut off, it seems that bernie sanders is bound and determined to stay in this race, and give hillary clinton a fight all the way to their convention. >> do you see any possibility of a hilary-bernie ticket? >> i think a lot of bernie

supporters if bernie doesn't become the nominee would love to see a sanders clinton ticket. but that is very, very far off at this point, and you are not hearing anything from the clinton campaign about the possibility of a joint ticket. the two of them don't seem to like each other a whole lot. so there would have to be a whole lot of making up for that to become a possibility. >> dave it's good to see you. thank you very much >> thank you john. the justice department has launched an investigation into long voting lines for arizona primary voters. some people waited up to five hours to cast their ballots on march 22nd. the count think cut the number of polling places from 200 four years ago to just 60 this year. county officials say they miscalculated how many polling places that they would need. today voters in the rural town of hochkiss, colorado are deciding whether to lift a ban

on marijuana shops. supporters say allowing the sale of marijuana will bring much-needed jobs to the former coal town. jim hooley is in hochkiss, colorado. jim? >> reporter: john, when marijuana was legalized here in colorado, every town around the state, all of the towns were given the option to opt out of the new law, meaning they didn't have to allow pop shops to open up in their towns if they didn't want them. that has been the case here. but during that same time, the economy has really started to fall apart, and now some of the people here believe that pot may hold at least one key to the town's recovery. hochkiss sits in the shadow of some of the most captive peaks. but hochkiss has not taken part in the rocky mountain high up to

this point. >> as many people tell me, i'm their hero as many people tell me they are upset about it. >> reporter: she is one of the organizers of the plan to allow retail pot shops to open here. tom wills owns a used bookstore here. he believes pot could be the economic spark his tiny town desperately needs. >> the coal mines are closing. we're looking for things to boost our local economy. >> reporter: for decades coal mines provided hundreds of good-paying jobs, but over the past couple of years they have been shuttered. proponents say it's the sales tax revenue that is so tantalizing, the green from the green economy if you will. last year in colorado alone, marijuana sales topped more than $1 billion. that produced $135 million in

sales tax revenues, and thousands of jobs across the state in what is the new pot industry. could the pot business replace some of the jobs that were lost in the mines. >> damn few? >> reporter: some here doubt pot is the key to solving the area's unemployment. almost double that of the rest of california. organic farms provide some work, but the pay is nothing like it was at the mines. marshall dan miller is concerned about crime. >> it's a cash business, so we have to worry about what transpires down there, what kind of security they have, so that they are safe and their products are safe. >> if people are walking up and down the streets high, that is already happening. >> reporter: mary and her supporters believe pot is already ingrained in the colorado culture, and by saying no to the shops, they will miss out on utilizing a green tool to

retool their town's future. five other towns all around colorado are voting tonight to legalize marijuana. and that vote will wrap up shortly. coming up at 7:00 mountain time tonight. >> jim, thank you. a new mississippi law will allow businesses and government workers to refuse service to gay and lesbian couples. the governor signed the bill into law today, saying the measure is designed to protect the religious freedom of workers. critics say the law sanctions discrimination against lgbt people. in north carolina, a similar anti-gay law approved last month could cost the state millions. paypal, killing plans for a $3 million operation center there. the internet payment company says the law is discriminatory. the project would have created 400 jobs. coming up next, college and

cash. uc berkeley accused of freezing out in-state students.

the san francisco board of supervisors has approved a new measure, allowing six weeks of fully paid time off for parents of newborns. it's the first jurisdiction in the country to do that. the state already allowed employees to get 55% of their pay for up to six weeks to be with a newborn, which was paid for by a state insurance program funded by workers. california's financially

troubled university system is being accused of favoring out of state students who pay higher tuition. but the university is fighting back. melissa chan reports. a state audit found that out of state applicants had an easier time getting into california schools than in-state applicants. >> personally, i find it very disturbing and disappointing that the school would do such a thing. when your motto is to serve california students. >> reporter: the reason it says is out of state students pay more tuition. and out of state students have become an important revenue stream. >> there has been a disinvestment, the amount of money that they receive per student has declined pretty dramatically overtime, and what they have hooked on is increased

tuition in the face of the loss of state support. >> reporter: non-resident uc students pay an extra $25,000 a year compared to local students and university has started accepting more of them. since 2008, the number of non-resident undergraduate has tripled from about 5% to 15.5% today. beyond the numbers, that's playing out on campuses in real ways, creating what some students say is a divide between haves, and have nots. >> what the problem is now is there is a growing inequality, or a certain type of person coming in as an in-state student, versus out of state students. >> reporter: muddying the waters is the fact that this monday the university of california announced an increase of 15% in the number of california students it has offered admissions too for the next

academic year. and the university says quote: the uc counter report also went on to point out that californians are still admitted at higher rates, and that more than 70% of all california applicants are accepted somewhere into the uc system. and the number of out of state students is still pretty low compared to other states. melissa chan, al jazeera, san francisco. auto racing is a high octane sport, but with the rise of electric cars, more and more pit stops now come with a battery charge. jake ward is in long beach, california. >> reporter: it's all of the muscle and excitement of auto racing, except for one thing. >> here are the lights. >> reporter: at the green light all you hear is tires.

the 2016 formula e race is the world's premier electric vehicle competition. >> trying to jockey into position -- >> reporter: winning this race can be the ticket into formula 1. so it attaches real drivers. the difficulty is teaching them to be fast but efficient, a new way to drive. >> it's very hard to train someone who's natural reaction is power, go for it, and leaving corners with just progressive thrust as opposed to on and off thrust. >> i'm used to the sound. i miss the sound. >> i always listened to the engine. i can do that anymore. so i really need to look at the steering wheel. >> reporter: they are practicing to switch out tires like any good pit crew would. but here is a measure of how

primitive e racing is, the battery won't last as long as the tires do. if all goes well, they really ever have to do this during a race. driven hard the battery only lasts about 20 minutes. >> this huge box here, and you can't see up here -- it goes up into the cockpit. >> reporter: so it's impossible to take the battery out? >> because we can't replace the battery pack, the driver literally gets out of car number 1, and hops in car number 2. >> reporter: oh, wow. in conventional races a driver never gets out of a car. >> it's quite exciting to jump from one car to another. it's different than i'm used to. you have around 32 seconds to change from one car to another,

and be ready. so sometimes it's quite tight, but normally you would do it around 26 or 27 seconds. >> reporter: racing is at an turning point. a the nation's second oldest motor sport event, an electric vehicle beat all challengers for the first time ever. now even the drivers could be replaced. in 2010, audi and stanford university sent an autonomous vehicle up the pikes peak course, and next year's course will feature a robot division. it's clear an autonomous race car can drive the lap time, but can it avoid the other cars on the track while doing it? this >> i suspect they will find it harder than they think. the actual mechanism of driving a vehicle around the track and stuff, i think they should get that up to the metal fairly quickly. what happens when the bloke in

front of you is spinning, which way does it go, was it aim for the spinning car? season 1, turn 1, 20 cars all firing to the same corner, that will be the moment when the answer is questioned. >> reporter: in a few decades it's unlikely any professional races will involve gasoline, and they may not even involve a human at the wheel. coming up next, from singer-song writer to social activist, my conversation with judy collins about her music and her legacy.

>> these people have decided that today they will be arrested. >> i know that i'm being surveilled. >> people are not getting the care that they need. >> this is a crime against humanity.

>> hands up... >> don't shoot. >> hands up... >> don't shoot. >> what do we want? >> justice. >> when do we want it? >> now. >> explosions going on... we're not quite sure - >> is that an i.e.d.? >> coming up tonight, we'll have the latest... >> does the government give you refugee status? >> they've marched to the border. >> thousands have taken to the streets here in protest. >> this is where gangs bury their members. >> they're tracking climate change. now for our conversation with judy collins, a star -- for

more than half a century, she always speaks her mind. he covers a lot of ground to talk about how her extraordinary career began. >> it started out as a child, i was trotted out on the stage at four years old in butte, montana, and i never looked back. >> what is life like for judy collins today? >> it's about 120 shows a year all over the country and the world, making new recordings. my life is exciting. i never stop working. >> were you about -- always about the politics? >> always. >> always? >> still am. mad as hell. [ laughter ] >> you were mad about the war. >> oh, whatever. >> you were mad about civil rights in the 60s. >> absolutely. >> today you are mad about? >> posttraumatic stress in our soldiers who are coming back to -- to poor healthcare, lack

of understanding, the fact that we can't get our congress to work and to do the things for the middle class, to raise the minimum wage, to give teachers the things that they need and the support that they need. it's easy to get mad about a lot of things, but yes, i was always politically inclined. my dad was very active. activist, spoke out, encouraged us to speak out and expected us to do our best at all times, and to vote. >> what was different in the 60, compared to today, especially with artists and activism? >> i once asked pete whom i was very close with. i said how do you feel about the world today? this was a couple of years before he died. and he said i have never been more optimistic. and i said why? and he said everywhere the world people are working on trying to

make change. i think he saw something that i find a harder time seeing, but i do have to say there are lots and lots of good things happening. we don't have the kinds of marches, the organized events that i was involved with. i wasn't necessarily getting arrested on the steps of the capitol -- >> you were testifying at the chicago seven trial and being admonished by prosecutors and judges. >> shut up and do not sing where have all of the flowers gone? >> you were at the forefront of the yippy movement. >> yes, i was there. you know who called me to go to that meeting? phil oaks. he said you have to go down to this hotel where they are having the press conference -- >> hotel americana. >> yes. for the yippies. so i went down and i knew these guys and i always admired and enjoyed david and abby and renny

davis and so on, and then of course when they were all arrested, then his lawyer said would you come to chicago and sing at their trial -- speak -- or do whatever you are going to do. and that's when i opened my mouth and sang where have all the flowers gone. [ laughter ] >> and it was the guard or whatever you call him, and the judge said we don't sing here. i had a total memory loss then. because i always thought once judge hoffman shut me off, i didn't talk anymore, but actually i went on and on and on talking. >> you have written and talked about your personal life. in fact you have shared so much of your personal private -- >> more than is probably prudent. >> well, very painful, i would think. you talk about the alcoholism in your family, about bulimia, about the death of your son. >> that is the hardest. >> what makes an artist want to share those things? >> well, i think it's a question of what makes anybody want to

share them? ♪ i lost you on a winter's day ♪ in that cold city far away >> if i hadn't written about my son's suicide i wouldn't have gotten over it. but i knew if i didn't write about it, i wasn't going to make it. and if i didn't talk about it, i wasn't going to make it. and i know people who have disappeared in this cloud of post suicidal depression and taboo. so i also saw the taboo. as an activist, i know there are certain things we don't want to talk about. we don't want to talk about the fact that we need a hire minimum wage. we don't want to talk about the racism which still exists in this country, but we have to, which is clear, because these things are doing out, and we have to talk about them. in order to get well we have to. so that's the answer of why write about these things. >> thank you for sharing your music and your stories with us,

and continued success. >> thank you so much, john. it's a pleasure to be here with you. that's our program. thank you for watching. i'm john siegenthaler. see you again tomorrow night. ali velshi is next. ♪ [ music ] >> they have the resources that often african-american communities tonight have.