Think sci-fi but only about ~20-30 years out. It takes place in NYC and has a huge emphasis on the media, entertainment, and cultural conflict in America.
One of the protagonists hosts a radio show and has significant influence. Another protagonist is a performer with some superhuman ability to connect with people emotionally. The final protag is a soldier of some kind that turns out to be an AI housed in a man's body
For some reason, South Africa is a huge political influence on what happens in the states. Other major players are the mental health institution and an overarching defense contractor that sells arms like hot cakes.
I really have no idea how popular this book was/is and when it was published. There was a common pattern of Dr. Seuss naming where common things became "widgets" and "gidgets" that made it a more difficult read than it had to be. Overall it was quite enjoyable and I'd recommend it if you guys happen to find out the title.