In modern times though it would really be hard to get a revolution started. Any body people thinking about starting one will be cracked down on and it will be put to a stop before anything can happen. Just like post United Healthcare CEO murder, we are arresting people and charging them with domestic terrorisms if they make a non credible threat against the insurance company. Make an example out of them and give them the book. America loves to lock people up. We hold more people in prison than any other developed country per capita.
It would really take a large explosive event or disaster to allow anything meaningful from happening.
With that said, the most likely thing I can think of happening in the United States is states leaving the union. Not a true revolution.