will be speaking to reporters in about a half-hour. we will have live coverage and more of your calls. first i want to share this headline from "the wall street journal." theheadline ahead of caucus, iowans are split on who could be trump. joining us on the phone on the iowa, can thomas. he was covering the biden campaign. factor is the undecided voter going into tomorrow's caucuses? good to be with you. it is a a factor. goers tend to decide very late in the process and there's a lot of uncertainty in this race right now. sanderspolls showing with an upwards trajectory. there are three or four other candidates vying for perhaps second-place or a strong showing and i think a lot of voters are just trying to sort out who they should support and ultimately who they think is best equipped to beat president trump. when you talk to voters, that is what comes up time and time again. they are really pragmatic. they are just trying to figure out who they think is going to fare best in november. steve: as we talked about yesterday it is a game of x dictations. -- expectations. you are with the campaigns. what are you telling them? with, have been traveling more or less, president biden the last few days. that will be something for your viewers to watch. this is a heavily catholic, labor union part of the state. that is a place where biden expects to do well. he will also be in des moines. his campaign is trying to make this electability argument, that he is the best chance of beating president trump, but what interesting, the last few days we have seen the campaign try to manage expectations. at capturingk south carolina in the totality. iowa is not one to be the end of the process. it's just the beginning. game in thecate long-term and he may do well in these super tuesday states. they can really undercut the electability issue -- message he has been delivering for months. steve: and they on what we are seeing, -- based on what we are seeing, it's not going to be bad weather. yes, it's relatively warm seemse forecast tomorrow to be pretty good for caucus-goers. they can caucus in the middle of a snowstorm. steve: we were talking about the poll.ines register a lot of expectations about what it would say, but it wasn't released. ken: yes, it was a real surprise last night. the des moines register and cnn decided not to release the poll. they were concerned -- there were questions about the integrity of the poll. so when i talk to the campaigns, they will say, in a way, we are flying blind here. it has very much been a bellwether for what happens couple days later in the caucus. is other thing to watch turnout. was 240,000turnout caucus-goers. it will probably be somewhere 2016en the 2008 record and . if it goes over 220,000, that's probably a good sign for bernie sanders because they are trying to mobilize college students, young people, people who have not been involved in the past. if they can find these infrequent voters that gives them a very good chance of winning. steve: ken thomas on the bus with the biden campaign joining us this day before the caucuses. thank you for being here with us on c-span. we appreciate it. ken: thanks. to my who will turn colleague. no longer the hat, but the glasses. it looks pretty mild there, greta. it's downright balmy. we will take it. we are waiting for tom steyer to come greet his supporters. he is on a beat trump bus tour andtarted in the last week he is going to make this one of his last stops. a little bit about coralville. just northeast of nearby iowa city. it's part of johnson county, which has a population of 100 51,000-plus. in the general election, from just in johnson county, clinton won this county, 66% to donald 's 20 point 8%. as we wait for mr. stier to come , we will continue to hear phone calls from campaign 2020, your impressions of the candidates. we will go to carry in virginia, democratic color. caller: thank you for taking my call. so, i like progressive candidates because they are the ones with the biggest ideas because we need systemic change. we know that there is a lot of corruption with this president. he has done some good things, of course. would say if you vote for joe biden, you are voting for nothing. i like joe biden, ok, but joe doesn't have any big ideas. my thing with joe biden is status quo, joe. all of you who are against bernie sanders and the progressives. we know nothing is for free. is a matter of changing the priorities of the country away from endless wars, bailouts, corporate subsidies to help the people who need the help, the people that are struggling, that cannot support of $400 emergency in their home because housing is too high, childcare is too high. if you really want big changes, you want someone with big ideas who has consistent and that is funny standards. carrie, are you still there? netta, a to joh republican. yes, i want to know what people don't like trump. he has done so much for our country. he has brought respect back. they say how -- he does not even get a salary. know would just like to why they don't like cam. what's he done that they don't like? what do they want to destroy him or something? a republican supporting the present. karen in minnesota, democratic caller. hi, karen. caller: hi. hello. greta: hello. go ahead. yes, i have to disagree with both of the two colors before me. before me.llers i have to do people i like very much. first of all, joe biden because i trust him and he has empathy, he israel. -- he is real. he has done things like the nra and pollution and stuff, he has done that before, but it has gone along the wayside a long way. he has done so much. and also, my second choice is amy klobuchar, because she does what she says and she says what she does, and she has a good head on her shoulders. she is real. she is down to earth, and you can trust her just like you can trust joe. , that is i'm concerned the most important thing, being able to actually believe and trust them. donald trump -- there are a lot of things i don't like about him , and a lot of them are that -- have to do with the tweeting. if you could get rid of his tw his problemshalf would be done. i have a lot of things i don't agree with but i don't want to start a fight now. thank you for the time. greta: you are welcome. have seen political ads this campaign season, but it's nothing like people are seeing in the state of iowa. tom steyer, who we are waiting back pocket at the brewing company in coralville, iowa, is one of the biggest spenders. $4 million on ads, as well as bernie sanders, which was 1.2 million dollars. let's go to sue in st. paul, minnesota, republican. caller: hi. hello? greta: hi, sioux. -- hi, sue. caller: hi. fromsband and i traveled minnesota to iowa. we are not republican. we are democrat. we didn't have a choice to pick your numbers there. we want to remind that bernie sanders is not bought and paid for like the rest of the candidates running. we are here door knocking for bernie, doing whatever we can to get people out to the caucus because we feel that medicare for all is going to help so many people in our country. are supporting a lot of that areat he does going to be free, not going to be free because the rich people in our country are going to have to start paying their first -- .heir fair share of taxes some people's taxes might go up a little bit. bernie. we don't trust any of the other candidates. that is why we are here in iowa to help him. sue, what will you be doing caucus night? caller: i'm not sure. they are asking for people to be precinct captains and if we can do that, we will. we are in des moines right now. we will help however we can because this is very important to my husband and i and our kids. they don't need help with the college debt because we are able to help them but the climate and weis really serious are really scared. so are our kids. this is very important to know. greta: sue, drove down to iowa to campaign for bernie sanders. leo. caller: yes, i call because i support bernie because he has vowed to try these big corporations. they have poisoned our troops and there's no cure for this. i am dying from this poisoning. look up this poisoning and you will see how much they have been poisoned. they were forced to keep this drug. greta: we have tom steyer joining us here at the back pocket brewery. the folks that are here, he is going to take your phone calls. continue coverage on c-span into the monday iowa caucuses. on a republican line -- caller: yes, ma'am, how are you? greta: how are you? who is your candidate? caller: my president, donald trump. he is our president, the only man who has ever been in there foris really done something us. these people call about biden and sanders and warren. by god. i don't know what is wrong with her. she is up there with both her hands around everything. that woman calling in from new york alone while ago, i agree with you 100%, i really do. greta: all right. tom steyer who joined the presidential race later than the other candidates has done about 80 total evidence in iowa. compare that to the former south bend mayor pete buttigieg was done 50-plus events in the last five weeks. in iowa. up with him here is what he had to tell voters. mr. buttigieg: whether we're talking about gun violence, addiction, mass incarceration, whether we are talking about climate change -- on behalf of everyone old enough to vote isht now our responsibility to figure that out so by the time you are old enough to run for president you're dealing with a whole different set of issues. we are when to take care of these things. that is our moral responsibility to the next generation.