DACA Explained

Wikpedia:

The Deferred Action for Childhood Arrivals (DACA) was an American immigration policy that allowed some individuals who entered the country as minors, and had either entered or remained in the country illegally, to receive a renewable two-year period of deferred action from deportation and to be eligible for a work permit.

As of 2017, approximately 800,000 individuals were enrolled in the program created by DACA. The policy was established by the Obama Administration in June 2012 and rescinded by the Trump Administration in September 2017. The policy was established by executive action rather than legislation; however, participating individuals were sometimes referred to as Dreamers after the DREAM Act bill, a bipartisan bill first proposed in 2001 that was the first of a number of subsequent bills in the U.S. House and Senate attempting to provide a pathway to citizenship or other legal status for certain undocumented residents who immigrated illegally as children and subsequently completed some college or military service