Political violence among rival partisans has been a deadly and destabilizing force throughout history and across the globe. It has claimed countless lives, deepened social divisions and even led to the collapse of democratic systems.

In recent history, political violence and its deadly consequences were seen in Italy after World War I when thousands of fascist supporters marched on Rome, the capital, threatening to overthrow the government unless Benito Mussolini was appointed prime minister. That kind of violence and its effects were also seen in 1930s Germany, where Adolf Hitler suppressed opposition and suspended civil liberties amid widespread unrest and factional violence.

Similar patterns occurred elsewhere in the decades that followed. Fascist movements used political violence and intimidation to seize or consolidate power, as seen in Spain under Francisco Franco, in Portugal under António de Oliveira Salazar and in Romania under the Iron Guard.

Today, many scholars, journalists, commentators and elected officials across the political spectrum have voiced alarm over escalating acts of violence in the United States, drawing parallels to Europe’s authoritarian past. Reports of politically motivated violence are distressingly common – ranging from mass shootings, car-ramming attacks and assaults at demonstrations to assassination attempts, kidnappings and threats targeting mayors, governors, political activists and members of Congress.

For example, threats of violence against members of Congress increased by more than 1,400%, from 902 in 2016 to an estimated 14,000 by the end of 2025, according to U.S. Capitol Police reports.

Political violence is certainly not new in American society, but current patterns differ in key ways. We found that, today, white nationalism is a key driver of support for political violence – a sign that white nationalism poses substantial danger to U.S. political stability.

In the 1970s, violence was political theater, aimed at drawing government and public attention to specific policies.........

© The Conversation