This period, the FBI's narrative shifted from the corporate espionage case to election security: federal authorities, including the FBI, are investigating suspicious letters sent to election offices and congressional offices in multiple states. According to Votebeat, more than 100 such letters were sent to election officials in the weeks before the 2026 midterms, including white powder sent to Senate Majority Leader Chuck Schumer's office (deemed non-hazardous) and a powdery substance to Wisconsin's Elections Commission. No injuries or confirmed hazardous materials have been reported, and no arrests or motives have been confirmed. Compared with the previous period's explicit criminal charges, this period's events remain under investigation with limited detail, marking a decline in signal intensity.
- The FBI is investigating suspicious letters sent to election offices and congressional offices in multiple states, involving more than 100 pieces of mail.
- Senate Majority Leader Chuck Schumer's Washington office received white powder, which law enforcement said was not hazardous.
- Wisconsin's Elections Commission also received mail containing a powdery substance.
- No injuries or confirmed hazardous materials have been reported, and no arrests or motives have been confirmed.
