Federal authorities have charged an Oklahoma man with sending hundreds of letters containing white powder to public officials and media outlets ahead of the 2024 and 2026 U.S. elections, according to court documents unsealed on November 3.
Robin Patrick Martin, 57, of Oklahoma City, faces two federal charges: conveying false or misleading information and hoaxes, and mailing threatening communications. The FBI identified Martin during an investigation into the letters, which were sent to election officials, members of Congress, pollsters, news media, and federal law enforcement agencies. Authorities allege more than 700 mailings were associated with the same sender, with some letters referencing organizations such as the United States Traitor Elimination Army (USTEA) and the Democratic Socialists of America (DSA).
The powders in the letters were later determined to be nonhazardous, consisting primarily of yeast or flour, though not all samples have been fully tested. The FBI had issued a public alert in October warning recipients to treat the mailings as potentially hazardous while laboratory testing was ongoing. No hazardous materials were identified in initial screenings, but authorities did not rule out the possibility of additional testing.
Timeline of Events and Key Developments
The investigation spans multiple states and election cycles. The first reported incidents occurred in September 2024, when election officials in Oklahoma and Louisiana received letters containing white powder. Additional mailings were intercepted in October 2026, including one addressed to the Oklahoma State Election Board that referenced the DSA New York. The letters often included demands, threats, and warnings about impending legal consequences for recipients.
One letter sent to the Oklahoma State Election Board in 2024 warned: “Stay on the right side of history. Your life might depend on it!” Another, sent under the USTEA banner, threatened: “More mailings will be sent if the demands are not met, and it won’t be flour next time in the envelopes.” A handwriting analysis linked the messages to Martin, according to an FBI affidavit.
Investigation and Law Enforcement Response
The FBI, working alongside the U.S. Postal Inspection Service, U.S. Capitol Police, and Oklahoma City Police Department, led the investigation. Authorities confirmed that no hazardous substances were found in the tested samples, but the scale and nature of the mailings prompted widespread concern. Several Senate offices, including those of Senators Lisa Blunt Rochester (D-DE), Alex Padilla (D-CA), and Kirsten Gillibrand (D-NY), reported receiving or intercepting suspicious mail.
The letters varied in content but consistently referenced election integrity concerns, including claims about the 2020 election and warnings about the 2024 and 2026 elections. Some messages were written in UV-reactive ink, which is not visible to the naked eye. The FBI’s affidavit noted that Martin allegedly expressed perceived issues with the 2020 election, including the claim that Donald Trump won the election, and raised concerns about similar issues recurring in future elections.
Legal Charges and Next Steps
Martin was arrested on November 2 and made his initial court appearance on November 3 in the U.S. District Court for the Western District of Oklahoma. As of the unsealing of court documents, no attorney had been listed on his behalf, and an email provided in the filing bounced back. The charges carry potential penalties of up to 20 years in prison if convicted.
Federal prosecutors allege that Martin’s actions were intended to intimidate officials and disrupt election processes. The investigation remains ongoing, with authorities continuing to analyze the remaining untested letters. The case has raised broader questions about election security, threats against public officials, and the handling of suspicious mailings in high-stakes political environments.