U.S. consumer prices climbed sharply again last month as the 10-week war with Iran pushed energy prices higher. The Labor Department reported Tuesday that its consumer price index rose 3.8% from April 2025. On a month-to-month basis, April prices rose 0.6% from March as gasoline prices rose 5.4%. Excluding volatile food and energy costs, so-called consumer core prices rose 0.4% last month from March and 2.8% from April 2025, relatively modest readings that suggest the energy price burst isn’t spilling over much yet into other prices. Inflation had been dropping more or less steadily since peaking with a 9.1% year-over-year spike in prices in June 2022, a surge caused by supply chain bottlenecks at the end of COVID-19 lockdowns and an energy price shock following the Russian invasion of Ukraine. But inflation remained above the Federal Reserve’s 2% target. Then, the United States and Israel attacked Iran on Feb.…