First, I must confess that for the many decades of my life I have read fiction more than non-fiction and enjoyed novel after novel. There have been some of them that were "very poorly written." Just being fair, paved, this book was not "very poorly written." It flows well. The grammar, the build, the conclusion, the focus were all more than understandable. In fact, it kept me reading right through to the end. So, the statement "very poorly written" is not a fair evaluation of the "writing" that is in the book.
Also, it's harder to say that a work of fiction is "in error" than with a work of non-fiction. One could take the message of the book to be "America must repent." It is more than that, though. It's more fair to say "America must repent because God had a hand of blessing upon it."
I don't care who you are, but anyone who reads the noteworthy coincidences of timing, locations, and dates detailed by Jonathan Cahn must pay attention if they have even the least of spiritual bones in their entire body.
Now, as to whether or not "America has God's hand upon it", that is open, of course, to debate. But, in terms of nations it is not. Daniel 4 clearly spells it out: "Seven times will pass by for you until you acknowledge that the Most High is sovereign over the kingdoms of men and gives them to anyone he wishes.""
Since that is about the rising and falling of nations and leaders, then it is fair to say that God is involved with nations as nations. It is also fair to say that He is more pleased and less pleased at various times, for He "gives them" means that for reasons of His own sovereignty He removes them from one and replaces them with another.
If you were to ask me if God was more pleased with George Washington than with Barack Obama, I'd say yes. If you were to ask if He was more pleased with that era than this, I'd say yes.
And I agree. Am reading it now.