In 1976, about one-quarter of American voters lived in counties that a presidential candidate won by a landslide; by 2004, that figure had risen to nearly one-half, according to Bill Bishop.
Sources
- Our Reading Guide on Congressional Dysfunction - ProPublica (propublica.org)
- https://dailyyonder.com/caught-in-a-landslide-county-level-voting-shows-increased-sorting/2016/11/21/ (dailyyonder.com)
- https://www.pewresearch.org/social-trends/2008/12/02/americans-say-they-like-diverse-communities-election-census-trends-suggest-otherwise/ (pewresearch.org)
- https://www.brookings.edu/articles/the-search-for-the-next-soccer-mom-trends-to-watch-in-2008/ (brookings.edu)