By Claudia Assis and Myra P. Saefong

The president demands faster price drops at the pump, but supply-chain lags are a stumbling block

President Donald Trump ordered the Justice Department to look into gas prices and accused energy companies of price gouging.

President Donald Trump has his sights set on U.S. retail gasoline, calling attention to the disconnect between prices at the pump and falling oil futures.

Retail gasoline prices have fallen, and are likely to drop even more by the time the Fourth of July holiday comes around, as experts are quick to point out. They haven't dropped as fast as crude-oil prices, however.