A police officer was killed when a suspect rammed him and another officer with his car outside the Capitol on Friday. The suspect wielded a knife and was shot dead. The other officer hit by the car survived. Omar, a Minnesota Democrat, tweeted: “Heartbroken to learn another [police officer] was killed while protecting the Capitol. My thoughts and prayers go out to the officer’s family and the entire Capitol police force. The death toll would have been worse if the assailant had an AR-15 [assault rifle] instead of a knife.” In response, Congressman Greg Murphy of North Carolina wrote: “Would...