Phoenix Union High School District (PXU) was the first Valley school district ABC15 had seen sending out a letter to parents regarding the measure.

The 1,500 active duty troops Trump deployed to the southern border began arriving Thursday. Four C-17 and C-130 military aircraft moved to El Paso and San Diego to carry out deportation flights.

Letters sent to family and students in both districts acknowledged that the new Department of Homeland Security policy may cause unease.