Press enter or click to view image in full size Bill Maher, photo courtesy of Creative Commons. In his May 1 “New Rules” segment on “Real Time,” Bill Maher mocked the phrase “Overton window,” joking that it sounded like the kind of political jargon nobody understands and nobody should care about. Fair enough. The phrase does sound like something invented in a graduate seminar. But the phenomenon it describes is real. And people who are serious about democratic politics ignore it at their peril. The Overton Window Explained The Overton window is simply the range of ideas the public is prepared to accept at a given moment. Step too far outside it, and even good ideas can sound alien, threatening, or detached from ordinary life. Work within it — or gradually shift it — and those same ideas can eventually become mainstream. Politics, in other words, is not only about being right. It is about bringing enough people with you to make durable change possible.…