Energy Secretary Steven Chu told a House panel Tuesday that he’d give himself top marks when asked to grade his policies’ effects on energy prices. Rep. Darrell Issa, the chairman of the House committee on Oversight and Government Reform, asked President Obama’s top energy official if he’d grade himself with an “A minus” on “controlling the cost of gasoline at the pump.” Chu responded by saying he’d give himself a better grade than that. “The tools we have at our disposal are limited, but I would I say I would give myself a little higher in that since I became...