WASHINGTON (AP) — Federal law enforcement officials are examining a number of threats aimed at members of Congress as the second trial of former President Donald Trump nears. That’s according to a U.S. official briefed on the matter who spoke to The Associated Press on Sunday. Part of the concern is ominous chatter about killing legislators or attacking them outside of the U.S. Capitol. The threats and concern armed protesters could return to the Capitol have prompted federal law enforcement officials to insist that thousands of National Guard troops remain in Washington in the coming weeks. Trump’s Senate trial on a charge of inciting a violent insurrection is set to begin the week of Feb. 8.