WASHINGTON (AP) — Threats to members of Congress are on the rise, security officials told senators on Tuesday at an emergency ...

Members of Congress are attending emergency security briefings after the killing of a Minnesota state lawmaker.

Vance Boelter, 57, impersonated law enforcement when he carried out the violent rampage early Saturday, authorities said.

Senators are set to receive an all-member briefing on security from the Senate Sergeant at Arms and U.S. Capitol Police on Tuesday morning.

One lawmaker and her husband were killed, and the second legislator and his wife sustained serious injuries in the shootings ...