The DOJ is probing gas price gouging as pump prices fall too slowly for the White House, natural gas is on track to dethrone oil as America's top fuel for the first time since 1950, and solar power is smashing records from Dublin to Delhi — all as a scorching heatwave gives 100 million Americans a climate reality check on July 4.

The Full Picture

Gas prices are dropping — but not fast enough for Washington

National gas prices averaged $3.82 a gallon as of Friday,...