Guido Reichstadter: Five-Day D.C. Bridge Protest and Charges

Guido Reichstadter is a 45-year-old Marine veteran and anti-AI activist who, in May 2026, spent five days camped on the 168-foot steel arch of the Frederick Douglass Memorial Bridge in Washington, D.C., in protest against the U.S. war in Iran and the unchecked development of artificial intelligence.¹ He climbed down on May 6 and was arrested on three charges, including unlawful entry and failure to obey an officer.²

Who He Is

Reichstadter is a Florida resident and former jeweler, raised in an evangelical Christian, conservative household, and a father of two.³ He served in the U.S. Marine Corps Reserves but left the service in 2003 after refusing to deploy for the invasion of Iraq.⁴

The May 2026 climb was not his first on that bridge. In 2022 he scaled the same arch for 28 hours to protest the Supreme Court’s decision to overturn Roe v. Wade, setting off green smoke bombs during the standoff.⁵

In 2024, he co-founded Stop AI with Sam Kirchner. The group, initially based out of a shared house in West Oakland, calls on the government to halt artificial intelligence development, which members describe as a “suicide race” toward human extinction.⁶ Between October 2024 and February 2025, Stop AI staged repeated protests at OpenAI’s San Francisco headquarters. In February 2025, members chained the company’s front doors shut and sat in front of them until police removed them; Reichstadter was charged with trespassing and other misdemeanors, and was jailed again in December 2025 for violating a court order barring him from OpenAI’s premises. Around September 2, 2025, he began a hunger strike outside Anthropic’s San Francisco office that lasted at least eight days.⁷

The Five-Day Bridge Protest

On the afternoon of Friday, May 1, 2026, Reichstadter scaled one of the bridge’s steel arches, unfurled a black banner he said symbolized mourning for civilian casualties in Iran, and pitched a small tent.⁵ He told Fox News he had quit his job and career to carry out the action, saying, “The spirit moves me.”⁸ He survived on dried cranberries, pretzels, and a limited supply of water.⁹

For five days he posted updates and demands on X while inbound and outbound lanes stayed blocked and traffic delays stretched toward the Maryland state line.¹⁰ By Tuesday, May 5, more than a dozen police vehicles were stationed in Anacostia Park at the foot of the bridge, and antiwar demonstrators had gathered alongside television crews.¹¹

He descended on the morning of Wednesday, May 6, as rain began to fall and high winds picked up. He later said he had run out of water days earlier. Metropolitan Police took him into custody immediately, transported him to a hospital for medical evaluation, and then jailed him for a day.¹² All bridge lanes reopened the same day.

Why He Did It

Reichstadter described the protest as driven by two linked concerns: the U.S. war in Iran and the dangers of unregulated AI. He said he was “outraged by the civilian casualties” and called on Americans to “nonviolently withdraw our support, our cooperation, from the system, from the regime, which is prosecuting these acts of murder in our name.”⁴ He framed AI as the connection, pointing to reports that AI systems had been used to pick targets in U.S. strikes on Iran.

Those reports had a factual basis. The Pentagon confirmed it used the Maven Smart System, an AI-powered targeting program produced by Palantir Technologies, during Operation Epic Fury, which began on February 28, 2026.¹³ A February 28 strike on the Shajareh Tayyebeh girls’ school in Minab, Iran, killed more than 170 people, many of them children; a preliminary Central Command assessment found the school had been added to an AI-generated target list without adequate human review because intelligence maps had not been updated to reflect its conversion from a former military base to a civilian school.

From the arch, Reichstadter warned of a “point of no return” in AI development, citing risks of “catastrophic harm” and “potentially human extinction.”¹² He said the action was partly inspired by a late-April 2026 Capitol Hill panel hosted by Senator Bernie Sanders, who called the trajectory of AI a “runaway train.”¹⁴

The Charges He Faces

After his arrest on May 6, D.C. police charged Reichstadter with three offenses:

Crowding, obstructing, or incommoding
Unlawful entry, a misdemeanor under D.C. Code § 22-3302 that carries up to six months in jail¹⁵
Failure to obey an officer²

He also reported facing a federal unlawful entry charge.¹⁶ A D.C. court hearing was scheduled for June 11, 2026, and as a condition of release he was barred from coming within 100 yards of the Frederick Douglass Memorial Bridge.⁹

He also had outstanding warrants in San Francisco from the Stop AI protests at OpenAI. He was unable to appear at a scheduled San Francisco court date on May 5 because he was still on the bridge, and as of mid-May 2026 he planned to travel to California to address those cases.

What He Plans Next

In a post-protest interview with the Washingtonian, Reichstadter said he intended to relocate permanently to the Washington, D.C., area to focus on community organizing and activism. He acknowledged the possibility of jail time but wrote on X that he hoped the protest would serve “as fuel for greater commitment and action in the cause of peace and in the fight for our future.”¹⁷

1
The New York Times. Guido Reichstadter Frederick Douglass Memorial Bridge
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WJLA. Protester Frederick Douglass Memorial Bridge May Come Down
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Washington Times. Guido Reichstadter Protester Says Stay Frederick Douglass Memorial
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Democracy Now. Guido Reichstadter Bridge Iran War Protest
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NBC Washington. Protester Scales Frederick Douglass Bridge Sparking Shutdown
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KQED. OpenAI Critic Arrested for SF Protest Ahead of Activist Groups Criminal Trial
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SFGate. San Francisco Anthropic Hunger Strike
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Fox News. Activist Remains Perched Atop DC Bridge Protesting Iran War AI Development
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Washingtonian. DCs Bridge Guy Speaks
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Fox Baltimore. Protester Frederick Douglass Memorial Bridge May Come Down
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The New York Times. Protester DC Frederick Douglass Memorial Bridge
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NewsNation. Guido Reichstadter Iran War Protestor DC Bridge Arrested
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Arms Control Association. AI Plays Major Role War Iran
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The Guardian. Bernie Sanders AI Panel
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D.C. Law Library. Section 22-3302 – Unlawful Entry on Property
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NBC Washington. Protester Climbs Down Douglass Bridge After Nearly 5 Days Faces Charges
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KCRA. Protester Washington Bridge 5-Day Stand Against AI Iran War