# From Popular to Policy.
The concept of the 'Overton Window' is a theory created by [[Joseph Overton]] from the [[Mackinac Center for Public Policy]].<ref>{{cite web |last1=Drehrer |first1=Rod |url=httphttps://www.theamericanconservative.com/dreher/jumping-through-the-overton-window/ |title=Jumping Through The Overton Window |work=The American Conservative |date=February 19, 2014 }}</ref>
The Overton Window has been used with great success by many on the left.<ref>{{cite web |url=https://www.americanthinker.com/articles/2013/06/barack_obama_climbs_through_the_overton_window.html |title=Barack Obama Climbs through the Overton Window |work=American Thinker }}</ref>