In popular discourse, the horseshoe theory asserts that advocates of the far-left and the far-right, rather than being at opposite and opposing ends of a linear continuum of the political spectrum, closely resemble each other, analogous to the way that the opposite ends of a horseshoe are close together.[1] The theory is attributed to the French philosopher and writer of fiction and poetry Jean-Pierre Faye in his 1972 book Théorie du récit: introduction aux langages totalitaires, in relation to Otto Strasser.[2]
Several political scientists, psychologists, and sociologists have criticized the horseshoe theory.[3][4][5] Proponents point to a number of perceived similarities between extremes and allege that both tend to support authoritarianism or totalitarianism; political scientists do not appear to support this notion, and instances of peer-reviewed research on the subject are scarce. Existing studies and comprehensive reviews often find only limited support and only under certain conditions; they generally contradict the theory's central premises.[6][7][8]
^Mayer, Nonna (2011). "Why extremes don't meet: Le Pen and Besancenot Voters in the 2007 Presidential Election". French Politics, Culture & Society. 29 (3). New York: Berghahn Books: 101–120. doi:10.3167/fpcs.2011.290307. S2CID147451564. Retrieved 12 July 2023. A commonly received idea, one strengthened by the post-war debates about the nature of totalitarianism, is that 'extremes meet.' Rather than a straight line between the Left and Right poles, the political spectrum would look more like a circle, or a 'horseshoe,' a metaphor the philosopher Jean-Pierre Faye used to describe the position of German parties in 1932, from the Nazis to the Communists.
^Đorić, Marija; Filipović, Miroslava (2010). "The Left or the Right: Old Paradigms and New Governments". Serbian Political Thought. 2 (1–2). Belgrade: Institute of Political Studies in Belgrade: 121–144. doi:10.22182/spt.2122011.8.