In a 12-page report on Jan. 3, the intelligence unit for the congressional police force described how thousands of enraged protesters, egged on by Trump and flanked by white supremacists and extreme militia groups, were likely to stream into Washington armed for battle.

This time, the focus of their ire was members of Congress, the report said.

“Supporters of the current president see January 6, 2021, as the last opportunity to overturn the results of the presidential election,” according to the memo, portions of which were obtained by The Washington Post. “This sense of desperation and disappointment may lead to more of an incentive to become violent. Unlike previous post-election protests, the targets of the pro-Trump supporters are not necessarily the counter-protesters as they were previously, but rather Congress itself is the target on the 6th.”

The internal report — which does not appear to have been shared widely with other law enforcement agencies, including the FBI — was among a number of flags that security experts say should have alerted officials to the high security risks on Jan. 6.