Four law enforcement officers have been killed and four others were injured while trying to serve a warrant in Charlotte, North Carolina. Three of the victims who died were with a U.S. Marshals task force and the fourth was a member of the local police.
Sen. Markwayne Mullin, R-Okla., faced an explosive confirmation hearing for Homeland Security chief as tensions flared with Sen. Rand Paul, R-Ky., over past violence comments....