progress, not only on the wall but any number of promises that he made. >> chris, he cares deeply about his base. his approval ratings down, his disapproval rating up. does he care more about the wall? forget tax reform, health care, forget anything else. is the wall really the ultimate number one thing? >> you know, erin, i'm hesitant to say there's a be all, end all, number one thing for donald trump. if he has shown anything in the campaign and in his presidency is that he has sort of a fungible sense of what his views are and what's a priority. i think he clearly knows that the immigration issue and the wall in particular are what vaulted him from basically an astrus in the primary to the top