for th"pbs newshour," i'm jane ferguson, in sana'a, yemen. >> nawaz: and back in this country, todayday 17 of the government shutdown, with neither side showing signs of backing down. john yang has more on where things stand and the new faces influencing negotiations. >> reporter: amna, a new nmngress is at work even if some of the federal govt isn't. and the new members include some progressive democrats who are lling for big changes. to break all this down, i'm joined by our politics monday team. that's amy walter of the "cook political report" and tamara keith of npr the shutdown is in day 17. we're essentially where we were on day one. tam, let me start with you. the president, for twars of his administration, has been rier, hee wants this bar wants this wall on the border, but he' s signedspending bills without any money for the wall, until now. why is ihe digginow? >> there are a lot of reasons why he might be diging in no. the official reason that we got from vice prident pence today is that this is a crisis along the bored that didn't exist earlier, that it is re of a crisis,