Capitol Police investigating 'suspicious substance' found in Rep. Bennie Thompson's office
Capitol Hill Police investigated a "suspicious substance" that may have arrived to the Capitol in a letter addressed to J6 Committee Chairman Benny Thompson, D-Miss. CHP officials reportedly called for those in the building nearby Thompson's office to shelter in place while the substance is investigated.The incident comes just one day before Thompson is scheduled to preside over the 10th January 6 Committee hearing. "USCP is investigating a suspicious substance or powder, potentially delivered in a letter," NBC News reporter Julie Tsirkin tweeted.