It does not take an inspired prophet of God to know that the USA is now under Divine judgment. How so? Well, just look around. - fallen humans have always sinned and there was a time when people understood, even if they sinned, that they had done wrong and felt guilty for it. But no longer - that is being cast off... it is obvious now that not only do we not feel guilt about evil but openly celebrate it, calling good evil, and evil good ... and even give hearty approval of others who do evil (see Rom 1:18 +). According to this passage of Romans, the worst judgment of God takes place (at least in this life) when God gives people over to their sinful "free will" and when onlookers give approval to the evil of others.
There is little doubt we are already there. But as we consider this it is critical to remember that the problem is not just OUT THERE. Repentance must begin with us, the church. We must repent of the sin and false teaching that permeates our own thinking. We must pray and, by the grace of God, align our thoughts with God and get our own house in order before we remotely expect to have any influence on the world.