Federal Charges Filed Against Oklahoma Man for 700 White Powder Envelopes

Federal prosecutors unsealed charges on Tuesday against an Oklahoma man for mailing hundreds of envelopes containing white powder to public figures. The target list included officials from both major parties, media organizations, and state election boards across the United States.

Robin Patrick Martin faces two counts in the federal case. One count covers conveying false or misleading information and hoaxes. The other count covers mailing threatening communications. Authorities stated the white powder inside the packages was nontoxic.

The envelopes contained messages written in UV-reactive ink. This substance is not easily visible to the naked eye. An FBI affidavit noted that Martin claimed President Donald Trump won the 2020 election. He also expressed concerns that similar issues were reappearing in the 2024 election cycle.

Investigators found return addresses on some envelopes linked to former headquarters of the Green Party of the United States. Other addresses pointed to the Democratic Socialists of America. The DSA stated it cooperated with the FBI during the investigation.

In a specific envelope sent to the Oklahoma State Election Board, Martin allegedly wrote, "stay on the right side of history your life might depend on it!" Handwriting analysis matched this note to the newer batch of letters sent in 2026. Those 2026 letters all pertained to the upcoming national elections.

Martin allegedly invoked a group called the United States Traitor Elimination Army in his writings. He threatened recipients with arrest for treason or worse. Surveillance footage from 2024 and 2026 showed him dropping off envelopes at a U.S. Postal Service facility.

Records reviewed by law enforcement indicate Martin purchased mailing supplies in August 2026. He also bought ingredients for the invisible ink used on the envelopes. Brendan Donahue, deputy chief inspector at the U.S. Postal Inspection Service, confirmed suspicious mailings reached various addresses nationwide. The Senate sergeant at arms notified congressional staff of the probe, and dozens of members of Congress reported being targeted.