The Republican National Committee said the RNC headquarters in Washington, D.C. was evacuated on Wednesday after "vials of blood" were received.

"We are thankful to law enforcement, who responded quickly and ensured everyone’s safety. The lockdown has been cleared and staff has resumed their office duties because we remain unintimidated and undeterred in our efforts to elect President Trump to the White House," RNC Chairman Michael Whatley said in a statement.
 
“This revolting attack comes on the heels of pro-Hamas protestors violently demonstrating on college campuses and deranged Biden supporters physically attacking our campaign volunteers for supporting President Trump," he added.

The RNC's news release about the situation described the incident as a "biological attack."
 
Whatley said that "the fringe-left is wreaking havoc, sowing fear, and lying to the public in a bad-faith effort to divide Americans and sway an election."

He continued, saying, "No matter what violent tactics Biden’s extreme left supporters try next, we stand firm in our mission to deliver greater freedom and opportunity for all Americans, and we won’t back down."