. >> 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
