New York —

US Treasury Secretary Scott Bessent on Monday vowed an “economic D-Day” for countries that buy oil from Iran. Experts say that means one country in particular: China.

Bessent didn’t name China on Monday, but he left little room for doubt.

“We find that the best way to engage with countries is through quiet diplomacy, and we are level-setting with every country to tell them our expectations,” Bessent said on Monday. “We know who they are. They know who they are.”

But while Bessent’s threat could put China front and center, the repercussions could reach across the world – even for American consumers, who could find their own energy costs rising as a result.