go up, if the tariffs go up, those american companies that had been to mexico, they're not going to come back to the united states, they're going to go somewhere else. they're going to go to vietnam or some place else. that's not how the economics work. the president ought to know that, but he doesn't. >> we'll soon find out what mexico has to say. thank you so much. we're going to take a quick break. stick around. much more on president trump's press conference with theresa may, plus an nbc news exclusive. children including infants and toddlers forced to sleep on concrete slabs on the floor of the u.s. border stations all because the detention centers are overcrowded. it's getting worse. you do not want to miss this story. nd t just say, badda book. badda boom. book now at choicehotels.com