OKLAHOMA CITY – In a startling development, federal authorities have charged Robin Martin, an Oklahoma City resident, for allegedly sending hundreds of letters containing nonhazardous white powder to public officials ahead of the upcoming 2024 and 2026 elections. The substances, which turned out to be yeast or flour, have raised serious concerns, although not all letters have undergone complete testing, as stated by the FBI in a court filing made public on Tuesday.
Martin faces charges for conveying a hoax and mailing threatening communications. He was arrested on Monday and was expected to appear in U.S. District Court in Oklahoma City shortly thereafter. As of now, online records do not list an attorney to comment on his behalf, and attempts to reach relatives for a statement have not been successful.
Federal authorities began their investigation last month after reports surfaced about letters containing “suspicious substances” being sent to congressional and election offices across the nation. The FBI urged recipients to treat these mailings as “potentially hazardous.” This warning led to evacuations at election offices in Louisiana and Oklahoma in October, with similar incidents reported in states from Idaho to Florida.
Investigators suspect that over 700 of these mailings are linked to the same individual, with letters addressed to election officials, members of Congress, pollsters, news media, and federal law enforcement. FBI agent David Cole mentioned in an affidavit that the investigation dates back to 2024 when multiple election officials nationwide reported receiving mail containing a white substance alongside a three-page letter declaring war.
Some of these letters included ominous messages that could only be revealed under ultraviolet light. The sender even used a return address labeled “U.S.T.E.A., United States Traitor Elimination Army, Takoma Park, MD.” A recurring theme in these mailings was a warning to recipients about potential arrests for treason “or worse!!”, further escalating the seriousness of the situation.
The FBI has gathered video evidence showing Martin’s vehicle stopping at various postal service sites in Oklahoma City, Dallas, and San Antonio in October. Additionally, his fingerprints were found on a letter addressed to FBI Director Kash Patel, which interestingly had his first name misspelled as “Kashyap.”
The investigation has seen collaboration with the Democratic Socialists of America (DSA). The FBI believes Martin, who was allegedly using the alias George Livingston, posted a warning message on a DSA email list in October, labeling members as traitors and suggesting they could be arrested for treason if they participated in the November 3 election.
This case sheds light on the severe implications of political tension and the lengths to which individuals might go to express their dissent or intimidate others involved in the electoral process. Authorities are continuing their investigation to ensure that such threats do not undermine the integrity of the upcoming elections.
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Associated Press journalist Alanna Durkin Richer in Washington contributed reporting.

