Cancer and politics operate very much the same way. If you understand the basic premise of one, much easier to understand the other. They are both parasitical.
A parasite lives on another organism,and absolutely must have a host to feed from in order to survive and sustain itself. Not only that, a parasite divides and sub-divides, proliferating as it sucks the life out of the host. This is what cancer does to one’s body, and this is what politics does to the citizenry of individuals. The only difference is one operates inside the body and the other outside the body, usually.