CHEYENNE (AP) - U.S. Rep. Cynthia Lummis has become the latest member of Congress to call on Attorney General Eric Holder to resign.
Holder has received much criticism over his handling of a flawed federal operation to stem gun-smuggling.
Lummis says Holder is stonewalling and refusing to cooperate with a congressional investigation into the operation known as Fast and Furious.
The Wyoming Republican says Holder's failed leadership of the Justice Department is a danger to Americans and a threat to those protecting the borders.
Fast and Furious tried to track gun-smuggling, but some guns supplied by federal agents in the operation ended up at crime scenes, including the shooting death of a Customs and Border Protection agent.