they would in order to force the president's hand. >> mitt romney as well, senator from utah, has made the point that he's hopeful that the administration will essentially back down, will apply pressure on mexico on the flow of immigrants without imposing tariffs. this is a tax argument that republicans are making. it is a free trade argument. it's a broader economic argument as well. they are trying to speak in the language that this president understands which is economic growth, sustainability of growth and the impact on financial markets, all of which have been rattled to the point where the federal reserve chairman is talking about perhaps having to lower interest rates to sustain economic growth. these are things that in general a president would be paying attention to and certainly donald trump headed into a re-election campaign will pay attention to. it's significant that republicans are willing to take the stand. we should note this is