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How Many Members Does Antifa Have? Where Is Its Headquarters? The FBI Has No Answers.

Despite saying that antifa is the biggest U.S. domestic threat, the FBI couldn’t explain how the movement is a “terror organization” — or an organization at all.

WASHINGTON, DC - DECEMBER 11: Operations Director of the National Security Branch at the Federal Bureau of Investigation (FBI) Michael Glasheen testifies before the House Committee on Homeland Security in the Cannon House Office Building on December 11, 2025 in Washington, DC. The committee convened to hear testimony from top national security officials on potential worldwide threats.  (Photo by Anna Moneymaker/Getty Images)
FBI National Security Branch Operations Director Michael Glasheen testifies on Capitol Hill before the House Committee on Homeland Security on Dec. 11, 2025, in Washington. Photo: Anna Moneymaker/Getty Images

A top FBI official toed the White House line about antifa as a major domestic terror threat at a House hearing on Thursday — but he struggled to answer questions about the leaderless movement.

Pressed repeatedly by a top Democrat on the House Homeland Security Committee about antifa’s size and location, the operations director of the FBI’s national security division didn’t have answers.

At one point, the FBI’s Michael Glasheen fumbled with his hands as he tried to find an answer for the question from Rep. Bennie Thompson, D-Miss.

“Well, the investigations are active,” Glasheen said.

“You said antifa is a terrorist organization. Tell us, as a committee, how did you come to that?”

Glasheen’s comments came three months after President Donald Trump proclaimed that antifa is a “major terror organization,” even though it the broad political movement does not have a hierarchy or leadership.

Trump followed his designation with a presidential memo on September 25 directing the FBI-led Joint Terrorism Task Forces to investigate and prosecute antifascists and other adherents of “anti-Americanism.”

The formless nature of the antifascist movement, however, appears to have flummoxed the FBI as it attempts to carry out Trump’s orders.

Glasheen called antifa “our primary concern right now” and called it “the most immediate, violent threat” from domestic terrorists. That led Thompson to ask him where antifa is located and how many members it has.

“We are building out the infrastructure right now,” Glasheen said.

“So what does that mean?” Thompson shot back. “I’m just — we’re trying to get the information. You said antifa is a terrorist organization. Tell us, as a committee, how did you come to that? Where do they exist? How many members do they have in the United States as of right now?”

“Well, that’s very fluid,” Glasheen said. “It’s ongoing for us to understand that. The same, no different than Al Qaeda or ISIS.”

Glasheen visibly struggled to answer the question before saying that the FBI’s investigations were “active.”

Glasheen is a veteran FBI official who was appointed to serve as the Terrorist Screening Center director under the Biden administration in 2023 and selected by current FBI Director Kash Patel as one of the agency’s five operations directors earlier this year.

The FBI’s shift to focusing on alleged left-wing violence comes despite researchers at the Center for Strategic and International Studies finding that despite an increase this year, it remains “much lower than historical levels of violence carried out by right-wing and jihadist attackers.”


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Trump has long obsessed over the “threat” that antifa poses to the U.S. His fixation appears to have been supercharged by the September 10 slaying of right-wing activist Charlie Kirk in Utah, allegedly by a shooter who engraved one unused bullet with the words “Hey fascist! catch!”

That helped spur Trump administration officials to launch an extensive search for links between the alleged killer, Tyler Robinson, and domestic or foreign groups that so far has produced no arrests.

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