. >> donald j. trump is calling for a total and complete shutdown of muslims entering the united states. >> "the des moines register" calling on trump to, quote, pull the plug on his boviating side show. >> i don't think i've made any mistakes. i'm sure i will at some point. >> despite or maybe because of those comments, trump's popularity has grown with republicans. if you look at the general electorate, 41% say his campaign statements are insulting. important to note, if trump wins the caucus tonight, he will be the first candidate from either party ever to win iowa without a single senator, without a single congressman or congresswoman or sitting governor endorsing him. >> kate snow on this unlikely journey to where we get to tonight. we promised news, traffic and weather. we'll be looking at weather, because a quick check of the radar show we're already having precipitation, some of it frozen, as far west as council bluffs in iowa. the weather is traveling down i-80 from west to east. so in effe

>> i asked donald trump three times if he would disavow the support of david duke and the ku klux klan. >> well, i have to look at the group. >> trump refuses to denounce the kkk. think about that. for president? >> ronald reagan made us believe it was morning in america again. well, now the children of the reagan revolution are ready to assume the mantel of leadership. >> mark, it was a quick turn. how quickly are they trying to

. >> that's really what donald trump is all about. he thinks we're fools. trump uses sleazy bankruptcy laws to avoid paying workers, he bans disabled veterans from his high rise. he even tried to use eminant domain to kick a widow from her home. >> gabe, it's interesting, i've been listening to the pundits today who talk about the low

the ads, one of the six republican attack ads focused on donald trump. here it is. >> look, i got the trump action figure. >> no way, it's huge. >> what does he do? >> he pretends to be a republican. [ laughter ] >> too big to fail! >> so he's not really a republican, he's not conservative enough. we could play this game all day, things that -- you're a man of faith. one of the other things that continues to strike me with donald trump is how well he's played with evangelical voters. he's at most rallies, he says things that most men of faith

continues hitting trump on eminent domain, so kind of what you could call a cruz greatest hits against donald trump. yao often saw cruz slam the trump for being what he calls not conservative enough. you've seen him go after him on eminent domain, now he has these child actors doing it for him in this ad. we expect to see more of these kinds of attacks here on the campaign trail here in south