Despite recent attacks on ICE detention centers and a history of violence dating back to the 2016 election, designating Antifa as a terrorist group remains difficult due to limitations in the legal framework and the group’s decentralized structure.
On July 4, 2025, eleven people were arrested following what federal authorities described as a “planned ambush” attack on the Prairieland Detention Center (ICE facility) in Alvarado, Texas.
Ten suspects face charges of attempted murder of federal officers after they used fireworks to lure officers out of the facility while concealing a gunman who shot an Alvarado police officer in the neck. The officer survived the attack.
Law enforcement uncovered extensive evidence linking the attackers to Antifa ideology, including a flag reading “RESIST FASCISM – FIGHT OLIGARCHY,” flyers stating “FIGHT ICE TERROR WITH CLASS WAR!” and “FREE ALL POLITICAL PRISONERS,” along with 12 sets of body armor, AR-15 rifles, and advanced communication gear.
FBI Special Agent Joe Rothrock described it as a “coordinated and targeted attack against law enforcement.”
Just three days later, 27-year-old Ryan Luis Mosqueda opened fire on a Border Patrol facility in McAllen, Texas, firing dozens of rounds before being killed by federal agents.
While Mosqueda’s ties to organized groups remain unclear, the timing suggests a pattern of escalating violence against immigration enforcement.
Meanwhile, Portland saw near-nightly attacks on its ICE facility. According to independent journalist Andy Ngo, “Since June 7, Antifa and far-left extremists have been carrying out violent attacks on the local Immigration and Customs Enforcement office almost every night.”
Incidents have included knife-throwing, explosives, and sustained efforts to breach the facility, resulting in 29 arrests on felony and misdemeanor charges.
The Portland attacks highlight the sustained, organized nature of Antifa operations. Activists have used Signal messaging apps to coordinate and have staged multi-week occupations around ICE facilities, terrorizing local residents with constant noise and intimidation.
Antifa, short for “anti-fascist”, is a decentralized network of far-left militants who oppose what they label as fascist, racist, or right-wing extremist ideologies.
Drawing from communist and anarchist philosophies, the movement traces its roots to post–World War I Germany, where leftist groups organized to fight fascist gangs.
Unlike traditional terrorist organizations with clear hierarchies, Antifa functions as a “loosely associated movement” with no formal membership, leadership, or central organization.
This decentralized model is intentional, designed around the concept of “leaderless resistance” to avoid infiltration by law enforcement.
Despite lacking formal organization, Antifa groups display sophisticated coordination. They employ black bloc tactics, wearing uniform black clothing and face coverings for anonymity, alongside “no platforming” strategies to silence opponents, doxing campaigns to expose and harass perceived enemies, direct action involving property destruction and physical violence, and digital activism marked by coordinated online harassment.
The Antifa movement gained national attention during the February 2017 Berkeley riots against Milo Yiannopoulos, where activists caused over $100,000 in property damage.
This was followed by major involvement in the August 2017 Charlottesville “Unite the Right” rally.
Antifa’s most visible show of force came during the 2020 Capitol Hill Occupied Protest (CHOP) in Seattle, where activists seized six city blocks and kept police out for 23 days.
The zone saw multiple shootings, including the deaths of two Black teenagers. Protesters blocked emergency responders, and the city later paid $12 million in legal settlements, including $3.6 million for property damage. Officials also came under fire for deleting tens of thousands of CHOP-related messages.
Independent journalists like Andy Ngo and Tim Pool documented over 100 consecutive nights of Antifa violence in Portland, including arson attacks on police stations, attempts to blind officers with lasers, and damage to federal buildings.
Nationwide, property destruction from 2020 protests exceeded $2 billion.
In a September 2020 testimony, then-FBI Director Christopher Wray stated that while Antifa is “an ideology, not an organization,” it is still “a real thing” that requires serious law enforcement attention.
When asked whether Antifa’s actions meet the federal definition of domestic terrorism, Wray replied: “It certainly matches the activity of some of the individuals we’re investigating and have pursued other kinds of charges against.”
Wray’s comments highlighted a core challenge: although individual Antifa activists may commit acts of domestic terrorism, prosecuting them under terrorism statutes is difficult.
The U.S. has no legal mechanism for designating domestic groups as terrorist organizations, only foreign entities can be labeled as such under current law.
Further complicating prosecution, Antifa’s decentralized structure makes it difficult to apply terrorism laws designed for hierarchical organizations.
As historian Mark Bray explains, Antifa “cannot be designated as a terrorist organization because the groups are loosely organized.”
Legal experts also warn that such a designation would raise serious First Amendment and due process concerns, potentially infringing on rights to free speech and assembly.
Antifa, as a domestic, ideologically driven movement without formal structure, simply does not meet the traditional legal criteria for terrorist designation.
Despite legal hurdles, lawmakers have repeatedly tried to address the Antifa threat through legislation.
In January 2025, Representative Marjorie Taylor Greene introduced House Resolution 26, calling for Antifa to be designated a domestic terrorist organization, for DOJ prosecution of its crimes as domestic terrorism, and for full federal resources to combat Antifa-linked violence.
However, the resolution faces major obstacles due to its partisan nature and the legal limitations described above.
Recent events suggest the Antifa threat is evolving.
The coordinated Alvarado attack and continued violence in Portland and other cities show that, despite its decentralized structure, Antifa exhibits sophisticated planning.
The focus on federal immigration facilities across multiple states in a short period points to either improved coordination or strong ideological influence. The challenge for U.S. law enforcement and policymakers is how to address the threat within the bounds of constitutional democracy.
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