Federal prosecutors say one man was behind a nationwide campaign that forced election offices, congressional staffers and first responders to treat ordinary envelopes like possible biological attacks.
Robin Patrick Martin of Oklahoma City has been charged with conveying false information and hoaxes and mailing threatening communications after allegedly sending more than 700 letters containing white powder.
The powder was reportedly yeast or flour in the letters tested so far. But the fear, evacuations and emergency response were very real.
BREAKING: An Oklahoma man is charged with mailing hundreds of letters containing nonhazardous powder to officials ahead of the election. https://t.co/hJNineqTSA
— The Associated Press (@AP) November 3, 2026
The Associated Press reported that Martin was arrested Monday and expected in federal court Tuesday. The complaint alleges that the recipients included state election officials, members of Congress, pollsters, news organizations and federal law-enforcement offices.
The investigation reaches back to 2024, when election officials in every state began receiving envelopes with a white substance and a three-page letter that declared war, according to an FBI affidavit cited by the outlet.
The FBI said the envelopes tested so far contained yeast or flour, although not every mailing had completed laboratory testing when the complaint became public. Federal authorities had already warned congressional and election offices to treat the substances as potentially hazardous.
Martin allegedly addressed the mail to officials of both political parties as well as media organizations and federal law enforcement. That breadth undercuts any attempt to dismiss the case as a single dispute with one office.
That detail matters. This was not an angry letter sent to one office.
Authorities allege a sustained operation stretching across two federal election cycles and hundreds of destinations.
CBS News reported that charging documents place the total above 700 envelopes. The affidavit says the letters discussed claimed problems with the 2020 election, asserted that President Trump won that contest and warned that similar issues could return in 2024.
Investigators also allege that Martin used the name George Livingston in an October message to a Democratic Socialists of America email list. The message reportedly called members traitors and warned of treason arrests if they voted in the November 3 election.
Those are government allegations, not a conviction. Martin is presumed innocent unless prosecutors prove the charges beyond a reasonable doubt.
What cannot be disputed is the disruption these mailings caused. Senator Ted Cruz said his Houston office received one of the envelopes in October and praised the FBI, Capitol Police and local first responders for moving quickly.
This afternoon, my Houston office received a suspicious piece of mail containing a white powder substance. The FBI, Houston Police and Fire Department, and U.S. Capitol Police responded swiftly.
I am grateful to law enforcement for their professionalism and to my dedicated team…
— Senator Ted Cruz (@SenTedCruz) October 16, 2026
Every envelope carrying an unidentified powder has to be treated as potentially deadly until trained personnel establish otherwise. Offices close and workers are evacuated.
Hazardous-material teams are deployed. Evidence must be collected without contaminating the scene.
That is why calling the powder harmless misses the point. A hoax succeeds when it forces people to act as though the threat is real.
The FBI’s Internet Crime Complaint Center issued a public warning on October 23 about suspicious white-powder letters sent to state and local election officials, media organizations and polling companies. The bureau advised recipients not to handle suspicious mail and to contact law enforcement immediately.
The alert showed how broadly the threat had spread before an arrest was announced. It also confirmed that federal authorities were treating the mailings as a national public-safety matter, not a local prank.
Threatening public officials with biological weapons, hoax or not, creates chaos and undermines the very foundations of our republic https://t.co/FKZJd3H1yh
— Jake Adler (@jakeadler) October 17, 2026
The case is a reminder that election security is about more than voting machines and ballot counts. It also means protecting the ordinary Americans who keep election offices open while threats are meant to frighten them away from doing their jobs.
The FBI says threats against election workers are threats against the democratic process itself. Whether a substance is dangerous or merely made to look dangerous, the intended result is fear and paralysis.
Now prosecutors will have to prove who sent the letters, what was inside them and whether the evidence establishes the federal crimes charged.
If the allegations hold up, this was not harmless political theater. It was an alleged campaign of intimidation that consumed public resources, terrorized staffers and attempted to turn the United States mail into a weapon on the eve of an election.






