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According to the video, Warren Buffett, one of the richest men in the United States, was distressed when he realized recently that his secretary was paying a higher percentage of her income in taxes than he was. In fact, over the last fifty years, the effective tax rate of middle-income Americans has stayed the same while the tax rate of the richest Americans has dropped by about 25%. If we’re to have a progressive tax rate, then we should institute a system whereby the richest Americans (what the video calls the “uber-wealthy”) should pay a higher percentage of their income in taxes than do middle-income Americans. This principle is called the Buffett Rule.

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