Transcript for Trump to visit US-Mexico border as government shutdown continues

Let's bring that to Jon Karl our chief white house correspondent. There is opposition in Republican ranks to this idea of declaring a national emergency but the president clearly considering it. One of the big questions is what kind ofcedent it would set. Reporter: Absolutely and some conservatives worried about what it means in terms of executive power but I'm told it is an option that the white house this current impasse, and a top official I spoke to does not expect the president to do it immediately. Still trying to get some kind of agreement through congress. Meanwhile, the president is heading to the Mexican border where he hopes to make a dramatic appeal. With talks broken down he is making his first trip to the border since he surveyed prototypes of his promised wall a year ago. It follows a dramatic scene at the white house where he walked out on talks with democratic leaders unwilling to give him anypayer money for his border wall. The president's meeting lasted just 14 minutes. He sort of slammed the table and when leader Pelosi said she didn't agree with the wall, he just walked out and said we have nothing to discuss. Reporter: The president on Twitter called it a total waste of time. I think the president made his position very clear today, that there will be no deal without a wall. Reporter: Meanwhile some 800,000 federal workers are caught in the cross fire. Most of them to go without the paycheck they're due to receive tomorrow. We asked the president whether he'd consider signing bills to fund parts of the government not related to his dispute with Democrats over border security. Jon, you think I should just sign? I'm saying if you sign that these workers can start getting paid. The government can start -- You would do that if you were in my position. I'm not in your position. I'm of coursing -- ? I'm asking would you do that if you were in my position because if you would do that you should never be in this position because you'd never get anything done. Good-bye, everybody. Thank you so much. Thank you. Thank you, Mr. President. Reporter: The president will go right to the banks of the Rio grande where he will be briefed by border patrol agents on the situation at the border. Meanwhile, Cecilia, there are no further talks scheduled here in Washington between the president and Democrats. Yeah, complete breakdown but we are glad you're in your position, Jon. Thank you.

This transcript has been automatically generated and may not be 100% accurate.