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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.
The American political scientist V.O. Key defined public opinion in 1961 as âopinions held by private persons which governments find it prudent to heed.â Subsequent advances in statistical and demographic analysis led by the 1990s to an understanding of public opinion as the collective view of a defined population, such as a particular demographic or ethnic group.