9 out of 10 venezuelans live in poverty. so yes, i am concerned, but i am also heartened, don. i'm heartened by the fact the trump administration is working multilaterally. what vice president pence did today in bogota with the lima group was stand with all of these democracies in insisting that the humanitarian aid enter and in committing to the legitimate president, juan guaido, that the international community, the united states, we're not about to leave the venezuelans behind. >> let's talk about the southern border and this national emergency. you joined dozens of other senior-level national security experts to publicly take on the president over this emergency declaration to get his border wall. and here's part of the statement that you signed on to. it says, "we are aware of no emergency that remotely justifies such a step. the president's actions are at odds with the overwhelming evidence in the public record including the administration's own data and estimates." so why did you feel compelled to confront him with this letter? >> i'm a private citizen now, don. i felt compelled to do this because i, studying the facts, and i know that there are