Liz Truss, who brought in tax cuts for the highest earners based on this idea, and as a result lasted only 45 days as prime minister of the U.K. See also: Marg

Liz Truss, who brought in tax cuts for the highest earners based on this idea, and as a result lasted only 45 days as prime minister of the U.K. See also: Margaret Thatcher, Ronald Regan.