1. What is daca?
Daca is a federal government program created in 2012 under President Obama to allow people brought to the US illegally as children the temporary right to live, study and work legally in America.
Those applying are vetted for any criminal history or threat to national security and must be students or have completed school or military service. If they pass vetting, action to deport them is deferred for two years, with a chance to renew, and they become eligible for basics like a driving license, college enrollment or a work permit.

2. Who are the dreamers?
Those protected under Daca are known as “Dreamers” and 787,580 have been granted approval. To apply, they must have been younger than 31 on 15 June 2012, when the program began, and “undocumented”, lacking legal immigration status.
They must have arrived in the US before turning 16 and lived there continuously since June Most Dreamers are from Mexico, El Salvador, Guatemala and Honduras and the largest numbers live in California, Texas, Florida and New York. They currently range in age from 15 to 36, according to the White House.

3. Why dreamers?
The Daca program was a compromise devised by the Obama administration after Congress failed to pass the so-called Development, Relief and Education for Alien Minors (Dream) Act, which would have offered those who had arrived illegally as children the chance of permanent legal residency. The bipartisan act was first introduced in 2001 and has repeatedly failed to pass.

4. Politico ARTICLE 

5. http://www.cnn.com/videos/politics/2017/09/05/sessions- trump-daca-decision-full-remarks.cnn

6. president Obama’s response