Even the Republican Congress might pass legislation to, at least partially, accommodate the dreamer children. That's the children who have been brought to this country as children, but aren't officially citizens.
Paul Ryan, who normally says some pretty bad things, has said about the dreamers. "At the heart of this issue are young people who came to this country through no fault of their own, and for many of them it’s the only country they know." Coming from Paul Ryan, that's somewhat encouraging.
Maybe something can get done tho I don't really trust the Republicans. They now just about own this country and it's issues, however. They now get the blame and have the obligation to try and make it work.
Part of the immigration issue is the fact that there are more people that have come to USA than the legal quotas for immigration allow. Those quotas are set by Congress. The quotas can be adjusted to better reflect the reality of who's here. Better reflect who's here and, in many cases, already working in our economy.
A big part of the issue is world population growth. The numbers keep getting bigger. The numbers and the quotas that have been set by Congress in the past don't match.