- Authorities investigate ‘suspicious substances’ mailed to congressional offices Politico
- Live updates: FBI is investigating letters with ‘suspicious substances’ sent to election offices AP News
- Letters with ‘suspicious substances’ sent to US election offices BBC
- Suspicious white powder sent to election officials in three states Yahoo
- Multiple states report suspicious packages with white powder at election offices WOODTV.com
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Authorities investigate ‘suspicious substances’ mailed to congressional offices – Politico
