Politico reports that “the fence” –the long. strong, double layered fence along hundreds of miles of the U.S.-Mexican border– if is finally happening.  I have been arguing for this –couple with regularization for most the nation’s 14 million aliens in the country without permission– and the first step, the fence, is coming into being.  In fact, I returned to the argument in my new book The Fourth Way: The Conservative Playbook for a Lasting GOP Majority.  From p.  77: