When Cole Tomas Allen charged the security checkpoint at the Washington Hilton on April 25, signing his manifesto "Friendly Federal Assassin," he was not acting alone. He was the latest soldier in a one-sided war that began long before he loaded his shotgun, and his ammunition was forged in language we have allowed to become normal.
The argument that political violence emerges spontaneously, divorced from the rhetoric that precedes it, has collapsed under the weight of evidence. From Butler, Pennsylvania, to the Hilton ballroom, the pattern is unmistakable: when prominent Democratic Party voices brand a political opponent a Nazi, a rapist, a fascist, and a traitor, some listeners will eventually conclude that murder is moral.
Consider the trajectory. In 2016, Sarah Silverman wore a Hitler costume on national television to mock Donald Trump. Joss Whedon called him "orange Muppet Hitler." Meryl Streep used the Golden Globes stage to cast the new president as a bully threatening democracy itself. By 2024, a White House deputy press secretary openly compared Trump to Hitler from the briefing room podium. By 2025, a state governor described federal immigration officers as "modern-day Gestapo," and a major-city mayor likened ICE agents to "a Neo-Nazi group."
The historical record on what such language produces is not in dispute. If you persuade enough citizens that their president is Hitler, that his cabinet is the Gestapo, and that his agents are Nazis, you are not making an argument. You are issuing a permit; a license to kill.
Thomas Matthew Crooks fired on Trump in Butler. Ryan Routh waited twelve hours in the shrubbery at West Palm Beach. Tyler Robinson assassinated Charlie Kirk in Orem, engraving anti-fascist taunts on his ammunition. A woman was arrested on the National Mall with Molotov cocktails and a plan to kill Speaker Mike Johnson and Defense Secretary Pete Hegseth, whom she labeled "a Nazi." Minnesota State Representative Melissa Hortman and her husband were murdered in their home, by a fellow Democrat. Then came Allen, a Caltech-trained engineer whose manifesto declared he would no longer permit a "pedophile, rapist, and traitor" to coat his hands with crimes.
Each assailant absorbed the same vocabulary. Each acted on the moral logic that Democratic Party rhetoric supplied.
This is where the comparison to Tehran becomes unavoidable. The Islamic Revolutionary Guard Corps spent years recruiting hitmen to murder John Bolton, Mike Pompeo, Nikki Haley, and Donald Trump himself. IRGC asset Farhad Shakeri received a seven-day deadline to plan the president's killing. The IRGC justifies these operations as righteous vengeance for Qasem Soleimani. The American left justifies its assassins as defenders of democracy against a fascist regime.
The justifications differ in language. They do not differ in result. Both networks produce dead Americans and grieving families. Both treat the elimination of a political adversary as a sacred duty. Both depend on an architecture of dehumanization that strips the target of moral standing before the trigger is pulled.
The Network Contagion Research Institute found 55 percent of left-of-center respondents view the assassination of Donald Trump as at least somewhat justified. The finding is no outlier. Scott Rasmussen's RMG Research found 28 percent of Democrats believe America would be better off with Trump dead, prompting Rasmussen to warn of "profound moral decay." A Manhattan Institute list experiment found one in three Democratic voters agreed with "I wish Trump's assassin hadn't missed" after Butler. YouGov reports 25 percent of self-described "very liberal" Americans accept political violence as sometimes justified. PBS News/NPR/Marist found 28 percent of Democrats believe Americans may have to use violence to "get the country back on track," a sixteen-point jump in a year. Five different pollsters point in one direction. Assaults on federal officers have risen 1,300 percent. Death threats have risen 8,000 percent. These are not coincidences. They are the measurable downstream effects of a sustained rhetorical campaign by Democrats.
Christians, conservatives, and Republicans have spent a decade being told they are not merely wrong but evil, not merely mistaken but monstrous. Charlie Kirk is dead because someone believed it. Melissa Hortman is dead because someone believed it. The Hilton ballroom dove under tables because someone believed it.
If the politicians, journalists, and entertainers who built this vocabulary want to halt the violence, they can begin by retiring the words that produced it. Until then, the manifestos will keep arriving, and so will the gunmen.