“Fiery greetings to the accused, imprisoned, and underground Antifas!” the anonymously written blog post began, according to an English translation. “On the night of November 3, 2025, we destroyed the BMW of Bernd Baumann, manager of the AfD parliamentary group, with an incendiary device.”

The claim of responsibility, posted in German on the radical left-wing website Indymedia, also threatened those supporting the Make America Great Again movement in America, suggesting that they will be murdered like Kirk.

“All you damn MAGA freaks, you will follow Kirk to hell,” said an excerpt of the statement, which was the sole sentence written in English.

Elsewhere, the 300-word post cited President Donald Trump’s designation of antifa as a domestic terrorism organization and his deployment of federal troops to quell the antifa-led uprisings against Immigration and Customs Enforcement. “Antifa has been placed on the list of ‘terrorist’ adversaries,” the statement continued, before calling on antifa’s forces to “organize militantly” in response.

ANTIFA LEADERS FLEE AMERICA AS TRUMP CRACKS DOWN ON DOMESTIC TERRORIST NETWORKS

“[When] the U.S. president babbles about loving the smell of deportations in the morning and deploys the military against anti-racist protest and resistance,” the call-to-action read, “it is urgently necessary to organize militantly against fascism.”

The cross-pollination of European and American antifa is under increasing scrutiny in the United States, as the Trump administration takes steps to classify antifa abroad as a foreign terrorist threat.

U.S. intelligence officials are reportedly examining antifa’s transnational ties. At the White House roundtable on antifa last month, Trump prodded panelists about their thoughts on a terrorism classification for overseas antifa operations.

“Would you like to see it done? You think it would help?” Trump asked attendees. “I’d be glad to do it. I think it’s the kind of thing I’d like to do. Does everybody agree? If you agree, I agree. Let’s get it done.” Trump then turned to Secretary of State Marco Rubio, the issuing authority for foreign terrorist designations, telling him, “We’ll take care of that.”

Monday’s communiqué on the alleged arson came approximately 12 hours after a car belonging to Baumann, the AfD’s secretary in the Bundestag, Germany’s lower house of parliament, was set ablaze overnight around 3:20 a.m. outside the lawmaker’s Hamburg home. By the time firefighters responded, Baumann’s BMW was already engulfed in flames.

A video provided by Baumann’s office to Deutsche Presse-Agentur, a Hamburg-based press agency, shows three burnt-out cars and a BMW with significant signs of fire damage. The fire is believed to have spread to the other cars parked nearby.

Officials are treating the case as a suspected act of arson. Germany’s state security service, the government branch responsible for handling politically motivated crimes, is investigating the incident. So far, no suspects have been identified.

The attack targeting Baumann follows a series of AfD candidate deaths occurring within weeks of each other ahead of local elections in September.

German police, however, dismissed suspicions of foul play, saying that some of the seven dead AfD politicians suffered from preexisting medical conditions.

Skeptics, such as German economist Stefan Homburg, called their deaths “statistically almost impossible,” an assessment amplified by AfD cochairwoman Alice Weidel.

ANTIFA MAINTAINS TIES TO INTERNATIONAL NETWORK, AS TRUMP ADMINISTRATION EYES FOREIGN TERRORIST DESIGNATION

AfD is a populist right-wing opposition party gaining ground in Germany. Despite its growing popularity, the party’s political opponents malign AfD as a fringe “neo-Nazi” movement for the group’s positions on mass migration, which are largely in line with mainstream Republican views toward illegal immigration in the U.S.

Antifa in the U.S., whose European origins were born out of an affront to Nazi-controlled Germany, has likewise likened conservatives to Nazis as a pretext for political violence. According to authorities investigating Kirk’s assassination, antifascist sayings were inscribed on the shooter’s bullet casings, such as “Hey, fascist! Catch!”