United States presidential approval rating

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In the United States, presidential job approval ratings were first conducted about 1937 by George Gallup to gauge public support for the president of the United States during their term. An approval rating is a percentage of a population sample who approve of a particular person or program, as determined by an opinion poll. Typically, a politician is assigned an approval rating based on responses to a poll in which a sample of people are asked whether they approve or disapprove of that politician. A question might ask: "Do you approve or disapprove of the way that the current president is handling their job as president?" Like most surveys that measure opinions, individual poll results may be inaccurate. Many unscientific approval rating systems exist that give inaccurate statistics, such as surveys that self-select, as in online questions. However, the aggregate presidential approval rating is generally accepted by statisticians as a statistically valid indicator of the comparative changes...

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