. >> donald j. trump is calling for a toll and complete shutdown of muslims entering the united states until our country's representatives can figure out what the hell is going on. >> trump's statement is a dangerous proposal that overrides history, the law, and the foundation of america itself. >> you're kidding. donald trump, full throttle, ready to destroy anyone who gets in his way. >> i don't think this country's establishment, politicians, the media, ever got this guy. they certainly journal estimated

. >> 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

. >> donald trump is calling for a total and complete shutdown of muslims entering the united states until our country's representatives can figure out what the hell is going on. >> it made well with some of his supporters. >> we are civilized people. >> these people with their beliefs are not civilized. we can't change them. >> but many in his own party have criticized him. the white house said it disqualified him from the presidency. experts questioned its feesibility and wonder it is the right way to fight terrorism. >> it is the best tool to fight terrorism. >> as he, it displays trump's readiness to conquer by dividing. sfwh mexico sends its people, they're not sending their best.

. >> donald j. trump is calling for a total and complete shutdown of muslims entering the united states until our country's representatives can figure out what the hell is going on. [ cheers and applause ] >> reaction was swift and loud. >> what was proposed yesterday is not what this party stands for, and more importantly, it's not what this country stands for. >> i do believe that it disqualifies him from serving as president of the united states. >> trump's statement, even in a season of extremes, is a dangerous proposal that overrides history, the law, and the foundation of america itself. >> but trump actually rose in the polls after this. a large part of the republican base seemed to support the idea. >> i'm supporting him, and i'm supporting what i believe he meant when he said i'd ban muslim immigration. i don't believe he's a racist. i think he was talking about we need to step back and re-examine the vetting process. >> but many saw this as a game changer.

>>> donald trump is calling for a total and complete shut down of muslims entering the united states until our country's representatives can figure out what the hell is going on. >> perhaps in response to that today president obama gave a speech at the islamic society of baltimore. it was his first visit to a mosque in the united states during his presidency. >> if we're serious about freedom of religion and i'm speaking to my fellow christians who remain the majority in this country, we have to understand an attack on one faith is an attack on all our faiths. and when any religious group is targeted, we all have a responsibility to speak up. and we have to reject a poll ticks that seeks to manipulate prejudice or.

>> donald j. trump is calling for a total and complete shutdown of muslims entering the united states, until our country's representatives can figure out what the hell is going on. >> trump's statement is a dangerous proposal that overrides history, the law, and the foundation of america itself. >> you're pitting donald trump, full throttle, ready to destroy anyone who gets in his way. ♪ ♪ >>> good evening. i'm chris matthews. i don't think this country's establishment politicians, the media, ever got this guy. they certainly underestimated him. not going anywhere. can't last. you know, with each week and

. >> donald trump is calling for a total and complete shutdown of muslims entering the united states until our country's representatives can figure out what the hell is going on. [ cheers and applause ] >> reaction was swift and loud. >> what was proposed yesterday is not what this party stands for. and more importantly, it's not what this country stands for. >> i do believe that it disqualifies him from serving as president of the united states. >> trump's statement even in this season of extremes is dangerous proposal that overrides history, the law, and the foundation of america itself. >> trump actually rose in the polls after that. a large part of the republican base seemed to support the idea. >> i'm supporting him and i'm supporting what i believe he meant when he said ban muslim immigration. i don't believe he's racist. i think he's talking about, you know, we need to step back and reexamine the vetting process. >> but many saw this as a game changer. many thought even proposing the

>> donald j. trump is calling for a total and complete shutdown of muslims entering the united states, until our country's representatives can figure out what the hell is going on. >> it played well with some of his supporters. >> okay, we are civilized people. these people, these -- with their beliefs -- are not civilized. and we can't change them. they're not willing to change. >> but many in his own party criticized him. the white house spokesman says it disqualified him from the presidency. and experts questioned its feasibility whether it's the right way to fight terrorism. >> he's hurting the best tool that law enforcement and people in both parties believe we have to fight terrorism, which is the help of the muslim american community. and this hurts us abroad, too. >> as he had with his campaign kickoff, it once again displayed trump's readiness to conquer by dividing. >> when mexico sends its people, they're not sending their best. they're sending people that have lots of problems.

. >> so in that add, the super pack backing marco rubio trying to not attack donald trump too harshly. he has pointed out rubio