From The Ashes
It's a book set in the 1980's and centers around what the world would be like after a nuclear/germ war head explosion world wide, where the whole world turns on one another and just fires, basically killing and destroying the vast majority of the world.
The book starts out just prior to this happening and then the majority of the book is about what the people do afterwards to try and rebuild and to change their world so that they can avoid another thing like this from happening again in the future.
Eventually the United States is basically divided into two seperate groups. The United States, ran by a military backed government with a president who isn't really even elected, simply takes over, and is basically ruling through military force to make people do what he wants.
The other is a group called the Tri-States, headed up by the main character, Ben Raines who are setting up their own type of government where they get back to the grass roots of the constitution and away from all the red tape, lawyer speak, etc.
It's a great book that is a series. I'm not sure how many there are, I've only read the first one, but I'll be reading the sequels cause it was a really great book.
I'd give it an 8.75 out of 10, maybe even a little higher than that.