FBI says it warned about prospect of violence ahead of riot

Steven D’Antuono, head of the Federal Bureau of Investigation (FBI) Washington field office, left, listens as acting U.S. Attorney Michael Sherwin, speaks during a news conference Tuesday in Washington. (Sarah Silbiger/Pool via AP)

WASHINGTON — The FBI warned law enforcement agencies ahead of last week’s breach of the U.S. Capitol about the potential for extremist-driven violence, U.S. officials said on Tuesday, contradicting earlier statements that they were caught off guard by the assault by supporters of President Donald Trump.