Popular sovereignty belongs to the electorate, which means the people. It is the principle that the power and authority of the government comes from the people themselves. In a democratic system, the people have the ultimate say in the government through their right to vote and elect their leaders. The government is accountable to the people and must act in their interest, as they are the source of its power. This is the opposite of the idea of absolute monarchy, where the ruler has unlimited power and authority over the people.