What is Daca and who are the Dreamers?

With Donald Trump poised to scrap the Obama-era program for children brought to the US illegally, we explain everything you need to know about itDonald Trump has said he will announce on Tuesday whether he is scrapping a program giving work permits to people who were brought to the US illegally as children. Reports suggest he is planning to scrap Deferred Action for Childhood Arrivals (Daca) but will give Congress up to six months to find a legislative alternative. But what is Daca, who are the