For months, president obama has promised to go it alone on immigration rornl. Romp. In a prime time speech tomorrow night, millions of undocumented immigrants from deportation. It is a step almost certain to set up a confrontation with republicans. Mike viqueria has more. Mike. Reporter good evening john. At this hour the president is inside the white house, hosing a dinner for congressional democrats, laying out a plan that is sure to ignite a political fire storm. After months of promises, president obama took to facebook to set the stage for action on immigration. What im going to be laying out is the things i can do with my Lawful Authority as president to make the system work better even as i continue to work with congress and encourage them to get a bipartisan comprehensive bill that can solve the entire problem. Reporter but with republicans in congress unwilling to move on reforming immigration mr. Obama will effectively cut them out, going it alone through executive action wit