>> and he wasn't the only one. we'll show you more on that in just a moment. but so far, it's mostly just been rhetoric, until now. the house of representatives turned tough talk into action approving a bill to effectively halt all refugees from coming in to the u.s. nbc's andrea mitchell reports. >> reporter: the fear about syrian refugees got ugly on the campaign trail. >> you know, if there's a rabid dog running around your neighborhood, you probably are not going to assume something good about that dog, and you're probably going to put your children out of the way. we have to have in place screening mechanisms that allow us to determine who the mad dogs are, quite frankly. >> reporter: donald trump, telling yahoo! he wouldn't rule out requiring muslims to register and carry identification. and trump saying the syrians are coming. >> syrians are now being caught at the southern border just like i said. they're going to be pouring in.