Overton window
The Overton window, also known as the window of discourse, is the range of ideas the public will accept. It is used by media pundits.[1][2] The term is derived from its originator, Joseph P. Overton (1960–2003),[3] a former vice president of the Mackinac Center for Public Policy,[4] who in his description of his eponymous window claimed that an idea’s political viability depends mainly on whether it falls within the window, rather than on politicians’ individual preferences.[5] According to Overton’s description, his window includes a range of policies considered politically acceptable in the current climate of public opinion, which a politician can recommend without being considered too extreme to gain or keep public office.