“The idea of the Overton Window of using people on the political fringe to change the terms of acceptable debate, that’s an idea that’s been hugely influential in conservative politics since Joseph P. Overton thought it up, making radical ideas seem acceptable by advocating for the unthinkable.”

“The idea of the Overton Window of using people on the political fringe to change the terms of acceptable debate, that’s an idea that’s been hugely influential in conservative politics since Joseph P. Overton thought it up, making radical ideas seem acceptable by advocating for the unthinkable.”

— Rachel Maddow