Popular Sovereignty is the concept that the government will act based on the will of the people.
This is a basic tenet of The Constitution.
The power comes from the base of the people up to the government, not down from on high such as with a monarchy.
I believe that this base of power has become flipped over.
Under the guise of protection, better education, better health, etc., the government is pushing things down on the people. The government has become corrupt and beholden to special interest groups and a few people in power who want to change the face of America.