On Tuesday, Attorney General Jeff Sessions announced President Trump had formally decided to end the Deferred Action for Childhood Arrivals (DACA). The move has a six-month delay, to allow Congress to draft a legislative fix and allow those with permits expiring within the next six months to renew (though no new permits will be issued), and would be implemented over the next two years as those deferrals peter out. It would affect almost 800,000 people.
The program was implemented in 2012 under President Obama. It allowed certain illegal immigrants who came to the country as minors to apply for a work visa and a two-year period of deferred action from deportation. The idea was to shift immigration enforcement away from low-priority illegal immigrants with good standing. Most of these illegal immigrants who came here as minors are called DREAMers, from the 2001 DREAM Act (Development, Relief and Education for Alien Minors). The DREAM Act sought to qualify alien minors for conditional residency that could lead to permanent residency. The DREAM Act was scrapped and stalled multiple times, leading to President Obama introducing DACA.