Nancy Pelosi’s office latest recipient of letter containing white powder
Former speaker is latest target of mailings sent to various Congress members in the lead-up to the midterm elections

TL;DR
- Nancy Pelosi's office received a suspicious letter containing white powder.
- This incident is part of a series of similar mailings sent to over three dozen members of Congress.
- Preliminary tests on some envelopes indicated the powder was not hazardous.
- Election offices across the US have also reported receiving suspicious mail.
- The FBI, Capitol police, and US Postal Inspection Service are investigating the mailings.