Gasoline Prices Are Up, and So Are the Iran War Stakes for Trump

Christopher Knittel says he flinched when he gassed up his Ford Bronco on Friday afternoon. “I was in Tewksbury, Massachusetts, and gas was $3.99 a gallon,” he says. I spoke with Knittel from the road as he made his way from the Massachusetts Institute of Technology, where he teaches energy economics, to his family cabin in the White Mountains of New Hampshire. Knittel even planned his journey with gasoline prices in mind. “I didn’t fill the tank all the way up because I’m expecting prices to be much lower in New Hampshire,” he says.

Since the US and Israel launched ...