Federal courts have ruled that migrant children inside the United States must be housed in “safe and sanitary” accommodation. So what explains the conditions at a Border Patrol station in Clint, Tex.? Guest: Caitlin Dickerson, who covers immigration for The New York Times. For more information on today’s episode, visit nytimes.com/thedaily.  Background reading: Soiled clothes, no diapers and no access to showers or soap — read more about the conditions that migrant children faced in an overcrowded border station in Texas.The authorities emptied the station, then moved more than 100 children back in. A Times reporter toured the site last week.Congress sent President Trump a $4.6 billion border aid package that left Democratic lawmakers badly divided.