About four months before the decision of the Bureau International des Expositions (BIE), the intergovernmental organization that has been nominating cities to host world expos since 1931, following Giorgia Meloni's trip to the U.S., the U.S. are endorsing Rome and the Italian bid.

"The United States welcomes Italy's bid to host the World Expo in 2030, recognizing the opportunity to use Expo as an inclusive platform to find shared solutions to common challenges," the White House wrote two days ago.