This is a loaded term. I keep hearing the likes of Cotton, Haley, Trump throwing this around. What is the national interest? Who defines the national interest? By golly, policy makers and politicians do. If the President changes in 2020, so changes the national interest. The implication that there is a clear, linear, precise definition of national interest is a false one. When it's abused in the context of immigration, I find it particularly appalling considering our nation's history. National interest is theatrical language for the uninformed.