U.S. Department of Homeland Security

The bulletin did not cite any specific threat but said that the risk of violence will persist for weeks. It warned that some extremists may be "emboldened" by the Jan. 6 attack on the U.S. Capitol.

White House press secretary Jen Psaki announced a series of steps the Biden administration is taking to try to tackle the threat of domestic extremism.

Federal Judge Nicholas Garaufis instructed the Department of Homeland Security to begin accepting new applications for the Deferred Action for Childhood Arrivals program as soon as Monday.

President Trump, who has refused to accept the results of the White House race, tweeted that Krebs had been terminated "effective immediately."

The agency said the U.S. system was prepared to handle the process of questioning the outcome of an election.

The Department of Homeland Security official says in his complaint that he was ordered to halt reports that made the president "look bad." DHS and the White House deny the allegation.

Elizabeth Neumann, a former assistant secretary at the Department of Homeland Security, says the Trump administration is creating the conditions for domestic extremism to flourish in the U.S.

Although the president continues to push unverified theories of widespread fraud or foreign interference, the FBI says it has no reporting to suggest the threat is real.

Brian Murphy was removed from his post at the DHS' Office of Intelligence and Analysis following news that his office compiled reports on protesters and journalists in Portland, Ore.

Inspector General Michael Horowitz announces the inquiry the day after Portland, Ore., Mayor Ted Wheeler was tear-gassed by federal agents.