Those who closely follow the British royal family often read into even the most subtle of fashion messaging, particularly when it comes from Kate Middleton. On Tuesday, June 2, alongside King Charles III and Queen Camilla, the Princess of Wales attended a reception at Saint James’s Palace in London to celebrate the 125th anniversary of Cancer Research UK. For the occasion, she chose a red dress with small white hearts by Rodarte, an American brand founded in 2001 by sisters Kate and Laura Mulleavy.

It was enough to fuel speculation among monarchy watchers, partly because Middleton wears relatively few American labels, generally favoring British designers or local brands on her official travels. Recently, however, the fashion call from across the Atlantic seems to have grown louder. During her recent trip to Italy, the princess also opted for a skirt by Jenni Kayne, a Los Angeles-based label also much appreciated by her sister-in-law, Meghan Markle.

Is this sudden interest in the United States a sign of travels to come? Given Prince William’s passion for soccer, it seems entirely conceivable that he will make the trip to watch the World Cup, which kicks off on June 11 in Mexico City. This summer also marks the 250th anniversary of the United States. To mark the occasion, Kate and William could be invited to one of the events organized by the White House. In July 1976, Queen Elizabeth II and Prince Philip visited Boston, Washington, and New York as part of the American bicentenary celebrations.

This April, Charles III and Queen Camilla traveled to the United States for a four-day state visit, organized by Donald Trump, during which they visited Washington, New York, and Virginia, among other places.