The illegal kids are the "Stormy Daniels" of the month slide
It's gotta come from DACA EO. I'll dig.
Sauce for migrant separation of children prior to Trump
This report on migrant family separation is from gov website. It is from January 2017, before Trump inaugurated, and cites data from study complete March 2016.
https://www.judiciary.senate.gov/imo/media/doc/KIND%20-%20Betraying%20Family%20Values.pdf