Santorum doesn't expend a great deal of ink on the fundamentals of limited government theory...because for him they are Axiomatic. He is starting from Goldwater and Reagan's precepts and elaborating on them since we are still dealing with the fact that their ideas are not fully implented yet. We are still left with the FDR/LBJ/Nixon/Carter/Xlinton edifice. GWB has done nothing to dismantle it. And Santorum is clearly not a fan of GWB's budgetary principles. So all we can say of Rauch is:
