Tariffs, Mr. Trump's Miracle Cure

``Past administrations have sought cooperation from Mexico on immigration issues without disrupting economic relations between the two countries. Mr. Trump's decision to mix the two issues threatens to undermine his efforts to renegotiate the North American Free Trade Agreement, which in turn is part of his strategy to compete with China... Once again, rather than acting strategically, Mr. Trump is lashing out -- and Americans will feel the pain.''