as sarah westwood reports, the white house is ready to fight back. >> trump's national emergency declaration has opened up even more divides among lawmaker on capitol hill, even among just republicans who are split on the president taking this approach. democrats have always opposed the idea of the president building a border wall no matter the funding source, but they also say the president using his emergency declaration powers in this way is unconstitutional, and while some republicans have expressed some disdmfcomfort wi the idea of the president setting a precedent by using his emergency powers in this way, others are arguing that there's a genuine national security and humanitarian crisis on the border, and they're also saying that this is not subversion of the will of congress. because congress did include some funding for the border wall in this spending package that trump signed on friday. take a listen to the startling different opinions expressed by democratic congressman adam shif and republican congressman jim