Mystery mailings put Congress and election offices on edge

More than three dozen lawmakers and election offices in at least 32 states received suspicious letters. Many contained a white, powder-like substance. The incidents forced evacuations and interrupted government work just weeks before the 2026 midterms. They also raised concerns about political intimidation.

Rep. Adam Smith's district office received a letter on Monday. Staff evacuated after finding a powdery substance and returned Tuesday. Prominent lawmakers targeted included Chuck Schumer, Amy Klobuchar, Susan Collins, and Pete Ricketts. Election offices in Ohio, Minnesota, Connecticut, Oklahoma, Arizona, and Delaware also received or were sent letters.

Authorities intercepted many letters before delivery. Others arrived and triggered evacuations. Preliminary tests found no hazardous materials in the powder tested so far. The FBI and U.S. Postal Inspection Service are investigating, but officials have not determined who sent the letters or whether the incidents are connected.

The campaign was broad enough to reach government offices across the country. Election offices in at least 32 states received similarly suspicious letters or had letters intercepted. More than three dozen congressional lawmakers were targeted, including Democrats and Republicans. Law enforcement sources estimated that over 100 letters were circulating nationwide.

The targets included prominent senators such as Chuck Schumer, Amy Klobuchar, Susan Collins, and Pete Ricketts. Election offices in Ohio, Minnesota, and Connecticut had letters intercepted. In Oklahoma, Arizona, and Delaware, letters arrived and prompted evacuations. Rep. Adam Smith's district office also evacuated after receiving a letter.

The full number of affected officials and offices remains uncertain because authorities intercepted many letters and have not confirmed every incident. The FBI is investigating the mailings and working to identify the sender. It has not said whether the letters are linked or part of a coordinated attack.

In these incidents, letters were treated as suspicious because they contained an unknown substance or appeared connected to similar threatening mailings. Many had a white, powder-like material inside. The article does not provide a formal checklist for suspicious mail, but the unknown contents alone were enough for officials to involve law enforcement.

An unidentified powder creates an immediate safety question. Staff cannot reliably determine by sight whether it is harmless or dangerous. Evacuating limits possible exposure and allows trained responders to secure the item, collect it, and arrange testing. That precaution explains why offices in Oklahoma, Arizona, Delaware, and Rep. Adam Smith's district evacuated.

Preliminary testing has found no hazardous materials in the powder examined so far. That result reduces the known danger but does not explain who sent the letters or whether all substances were identical. Investigators continue examining the mailings and their origins.

When an office receives suspicious mail, employees may evacuate while responders secure the area and examine the item. That immediately interrupts routine government work. Congressional staff may be unable to meet constituents or handle legislative business, while election offices may have to pause preparations just weeks before the 2026 midterms.

Rep. Adam Smith's district office illustrates the disruption. Staff evacuated after receiving a letter containing a powdery substance, then returned the next day. Election offices in Oklahoma, Arizona, and Delaware also evacuated after letters arrived. Other letters were intercepted in Ohio, Minnesota, and Connecticut, preventing delivery to those offices.

The article does not quantify delays to specific election tasks. It does show a broader operational cost: officials must spend time coordinating with the FBI, Postal Inspection Service, and other law-enforcement partners. Repeated incidents can also heighten fear and create concerns about political intimidation, even when testing finds no hazardous material.

The FBI is leading the broader investigation with the U.S. Postal Inspection Service and local law-enforcement partners. The FBI said the agencies are examining suspicious mail sent to congressional offices, secretary of state offices, and related election offices. It is also working to identify whoever sent the letters and has not confirmed whether particular incidents are linked.

The Postal Inspection Service is the federal law-enforcement agency involved in investigating suspicious mail sent through the postal system. The article names it as an investigative partner but does not describe a separate action in each incident. The FBI and Postal Inspection Service are therefore responding jointly rather than announcing separate findings.

The U.S. Capitol Police focused on congressional security and preparedness. It sent notices to House and Senate offices warning about suspicious substances and urging vigilance. The House and Senate sergeants at arms, along with other officials, also issued warnings. The article does not assign them investigative control.

The 2001 anthrax attacks created a lasting reason for congressional offices to treat suspicious letters seriously. On October 15, 2001, a staffer opened an anthrax-laced letter in then-Senate Majority Leader Tom Daschle's office. The Hart Senate Office Building closed for months, and the attacks killed five people that year.

The current Capitol Police notice was sent on the attacks' 25th anniversary. It warned congressional offices about letters containing suspicious substances and urged staff to remain vigilant. That history helps explain why employees evacuate, avoid opening questionable mail, and contact law enforcement when powder is found.

The present incidents have not produced the same confirmed danger. Preliminary testing of the powder has found no hazardous materials so far. Still, the earlier attacks showed that a letter can disrupt Congress and endanger lives. Current procedures emphasize caution while investigators determine the substances, source, and possible connections.

Lawmakers and election offices are central to representative government. Lawmakers make public decisions, while election offices support the election process and related administration. The article identifies the mailings as raising concerns about political intimidation because they targeted both elected officials and election institutions just weeks before the 2026 midterms.

The incidents show how intimidation can work even without confirmed physical harm. A powder-filled letter sent Rep. Adam Smith's district office caused staff to evacuate. Letters also reached or were intercepted at election offices in at least 32 states. These responses consume time, interrupt public work, and require officials to involve law enforcement.

Preliminary testing has found no hazardous materials, and investigators have not established who sent the letters or whether they are connected. Even so, repeated threats can make public offices feel unsafe and disrupt election preparation. The article does not report canceled elections or specific lasting delays, but it shows why authorities are responding cautiously.