We frequently evoke the ideals of American excellence and exceptionalism. But earlier this week when I visited Kensington, Pennsylvania , what I saw was a third-world reality within our own country. Those needle-ridden streets are the direct consequence of a porous southern border and disastrous domestic policies that pay people to do the opposite of what we want them to do. What I witnessed revealed to me the profound reality of the double consciousness that permeates our nation — the stark contrast between the grand ideals we champion versus the harsh realities faced by those dwelling in the depths of...