Federal authorities in the United States are investigating a coordinated wave of letters containing suspicious white powdery substances, mailed to election offices and congressional offices across the country in the weeks leading up to the November midterm elections.
The FBI and the U.S. Postal Inspection Service confirmed they are jointly probing the mailings, warning that the contents of the envelopes must be treated as “potentially hazardous” until testing determines otherwise. Secretary of state offices, state election administrators and multiple Senate offices have all received letters as part of what authorities describe as a series of suspicious mailings sent to various addresses nationwide.
At least eight states have been affected.
The incidents prompted evacuations, hazmat responses and at least one hospital visit. In Louisiana, an employee at the secretary of state’s office in Baton Rouge was taken to an emergency room as a precaution after opening an envelope containing white powder. Offices at the Arizona State Capitol complex were evacuated after staff opened a similar envelope, triggering a full law enforcement and hazmat response. Election offices in Oklahoma also prompted evacuations, while the U.S. Postal Service intercepted a package addressed to Ohio’s secretary of state before it could be delivered.
Powder-containing packages were sent to secretaries of state and election offices in Iowa, Kansas, Nebraska, Oklahoma, Tennessee and Wyoming. The secretaries of state for Colorado, Connecticut and Indiana also reported that similar envelopes were either intercepted or received. The geographic spread of the mailings — stretching from the Great Plains to New England to the Southwest — suggests a deliberate and organized effort rather than an isolated act.
On Capitol Hill, the Senate Sergeant at Arms confirmed that letters containing suspicious substances had been sent to multiple congressional offices, with those incidents now under investigation by the USPIS, FBI and Capitol Police. California Senator Alex Padilla told CNN that one of his offices had been targeted, though the letter was intercepted by the Postal Service before reaching staff. The threat appeared, at least initially, to be concentrated in the Senate, though the House of Representatives was actively monitoring developments.
“We are working with our partners to identify the individual or individuals responsible for the letters,” an FBI spokesperson said. “The FBI will continue to safeguard the public and secure elections for American citizens.”
Deputy Postal Inspector Brendan Donahue was unequivocal: “Any threat or attack on election officials is unacceptable.” In a joint memo, the FBI and the Postal Inspection Service stated that law enforcement is working to intercept any additional letters before delivery and that all suspicious substances must be handled in accordance with established safety protocols.
The National Association of Secretaries of State and the National Association of State Election Directors jointly condemned the mailings as direct threats against election personnel — officials who have already faced a documented surge in harassment, intimidation and threats in recent election cycles.
The timing is significant. Election administrators across the United States are in the final stages of preparing for the November midterms, a period when staffing pressures are high, mail volumes are elevated and the administrative machinery of democracy is operating at full capacity. Attacks on that infrastructure — even when no casualties result — carry an intimidating weight that extends well beyond the immediate physical risk.
Investigations are ongoing, and no arrests have been publicly announced.
