U.S. intelligence agencies have identified domestic extremists with grievances rooted in election-related conspiracy theories, including belief in widespread voter fraud and animosity toward perceived political opponents, as the most likely threat of violence in the election.

In an intelligence bulletin that was not distributed publicly but was reviewed by NBC News, agents from the FBI and the Department of Homeland Security warn state and local law enforcement agencies that domestic violent extremists seeking to terrorize and disrupt the vote are a threat to the election and throughout Inauguration Day.