Right wing whining about President Obama's policy of selective enforcement of immigration law and deportations combined with recent talk about Presidential pardons for those convicted under the old sentencing law, and the result was an idea that some on the right would find to be deeply disturbing. It is beautiful in its simplicity.
U. S. Constitution, Article II, Section 2: "The President . . . shall have Power to grant Reprieves and Pardons for Offences against the United States"
President Obama could Constitutionally pardon all the dreamers, if he wanted to. That would be the end of that, wouldn't it?