FBI investigates suspicious mailings to Congress and election offices

Letters containing unknown substances were sent to Democratic senators and secretaries of state offices nationwide in the weeks before the midterm election.

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Oct 15, 2026

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FBI investigates suspicious mailings to Congress and election offices

Letters containing unknown substances were sent to Democratic senators and secretaries of state offices nationwide in the weeks before the midterm election.

In brief

Letters containing unknown substances were sent to Democratic senators and secretaries of state offices nationwide in the weeks before the midterm election. The FBI, Capitol Police and Postal Inspection Service are investigating suspicious letters with unknown substances mailed to congressional offices and secretaries…

Suspicious letters sent nationwide

The FBI, U.S. Capitol Police and U.S. Postal Inspection Service are investigating letters containing suspicious substances mailed to various addresses nationwide, including multiple congressional offices.

Democratic senators targeted

The offices of several Democratic senators were targeted, including Senate Minority Leader Chuck Schumer of New York. One letter addressed to Schumer was intercepted by authorities.

Other senators' offices affected

Other senators' offices affected

Senator Alex Padilla of California's office received a letter with a suspicious substance that was intercepted by USPS. Senator Chris Murphy's Hartford, Connecticut office also received a suspicious letter.

Election officials also targeted

Secretaries of state offices in Louisiana, Ohio and Oklahoma were sent packages containing mysterious powders this week. Oklahoma and Louisiana reported receiving the envelopes; Ohio intercepted its package.

Timing near Election Day

These incidents come just weeks before Election Day on November third. The targeted offices oversee and manage the election process in their respective states.

Envelope details provided

The notice to Senate staff included an image of one suspicious envelope and said the letters may contain different variations of postage stamps. Staff were warned to treat suspicious items as potentially hazardous.

“may contain different variations of postage stamps”

Interception efforts underway

Law enforcement officials are working to intercept any additional letters before delivery, though some letters may reach their destinations. The FBI said some letters contained an unknown substance.

“Law enforcement officials are working to intercept any additional letters before they are delivered, however, it is possible that some letters may reach their destinations”

Safety protocols for staff

The House sergeant at arms advised district offices to use safe mail handling procedures, including mail hoods, screening equipment that allows handling mail without exposing staff to danger.

Pattern of election threats

Threats against election workers have increased in recent years, including incidents of suspicious substances mailed to their offices. Similar incidents occurred in twenty twenty-three and just weeks before the presidential election in twenty twenty-four.

Investigation ongoing

The FBI confirmed the agencies are investigating a series of suspicious mailings sent to various addresses nationwide, including Secretary of State offices. They are working to identify the individual or individuals responsible.

“We are also working with our partners to identify the individual or individuals responsible for the letters”

The big picture

The FBI, Capitol Police and Postal Inspection Service are investigating suspicious letters with unknown substances mailed to congressional offices and secretaries of state nationwide weeks before Election Day on November third.

Read the original on NBC News

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