Texas and Arizona's governors are giving migrants bus tickets to the capital. The mayor of Washington, DC, says it’s causing a humanitarian crisis in the city — and that the White House isn’t helping.This episode was reported and produced by Haleema Shah, edited by Matt Collette, fact-checked by Victoria Dominguez and Serena Solin, engineered by Efim Shapiro and Paul Robert Mounsey, and hosted by Noel King.Transcript at vox.com/todayexplained  Support Today, Explained by making a financial contribution to Vox! bit.ly/givepodcastsLearn more about your ad choices. Visit podcastchoices.com/adchoices