The Department of Homeland Security announced Tuesday morning its U.S. Citizenship and Immigration Services agency will begin winding down the Deferred Action for Childhood Arrivals program that was created by executive order in 2012, and rescinded on Tuesday by the Trump administration.

“This administration’s decision to terminate DACA was not taken lightly. The Department of Justice has carefully evaluated the program’s constitutionality and determined it conflicts with our existing immigration laws,” said DHS Acting Secretary Elaine Duke.