Fortunately, a legislated deal between these competing interests is obvious: regularization of the 700,000 who can show they have not been involved in violence or criminal enterprise; a significant investment in border security, including the 700-plus miles of wall; an explicit rejection of “chain migration” entitlement or preference for the dreamers; and an end to the absurd “diversity visa lottery.”

To repeat: It really is the most obvious of bargains. Whoever causes this compromise to collapse not only is not public spirited, they are themselves opponents of rational self-government. If our government cannot do the easy deals, how will it ever accomplish the difficult ones?