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1 There are areas of commonality, or consensus, within American public opinion, including consensus on the legitimacy of the government, equality of opportunity, liberty, and democracy.
Diffen âº Social Sciences âº Civics. The key difference between a democracy and a republic lies in the limits placed on government by the law, which has implications for minority rights. Both forms of government tend to use a representational system â i.e., citizens vote to elect politicians to represent their interests and form the government.