This program from NPR "Here and Now" will explain about how Big Money is controlling the country... [wbur.org]
Of course, the truth behind Citizens United despite SCOTUS saying and thinking it was no big deal. Of course I see this as a population and resource issue. A stable and viable governmental system is a resource. As our numbers and diversity grow so do our differences, opinions and needs. It also makes it harder to connect to a majority of people so a bigger stick (more money) is needed to get through to the masses.