A retired U.S. general came under sharp criticism from a Republican committee chairman on Thursday after testifying that the Obama administration reacted weakly to the deadly 2012 attack on the U.S. mission in Benghazi, Libya. Retired Brig. Gen. Robert Lovell, the star witness at a House Oversight and Government Reform Committee hearing, testified that U.S. forces “should have tried” to get to the outpost in time to help save the lives of U.S. Ambassador Chris Stevens and three other Americans. He blamed the State Department for not making stronger requests for action. A few hours later, the powerful chairman of...