Britain's King Charles III greets people after addressing a Joint Meeting of Congress in the House Chamber at the US Capitol in Washington, DC, on April 28, 2026. (Photo by HENRY NICHOLLS / POOL / AFP via Getty Images)

Britain's King Charles III and Queen Camilla are greeted by US Senator Tom Cotton, Republican from Arkansas, before the King's address to a Joint Meeting of Congress in the House Chamber at the US Capitol in Washington, DC, on April 28, 2026. (Photo by Henry NICHOLLS / POOL / AFP via Getty Images)

Britain's King Charles III and Queen Camilla are greeted by US Senator Chuck Grassley, Republican from Iowa, before the King's address to a Joint Meeting of Congress in the House Chamber at the US Capitol in Washington, DC, on April 28, 2026. (Photo by Henry NICHOLLS / POOL / AFP via Getty Images)

Britain's King Charles III and Queen Camilla are greeted by US Senator and Minority Leader Chuck Schummer, Democrat from New York, before the King's address to a Joint Meeting of Congress in the House Chamber at the US Capitol in Washington, DC, on April 28, 2026. (Photo by Henry NICHOLLS / POOL / AFP via Getty Images)

Britain's King Charles III and Queen Camilla are greeted by former Speaker of the US House of Representatives Nancy Pelosi, before the King's address to a Joint Meeting of Congress in the House Chamber at the US Capitol in Washington, DC, on April 28, 2026. (Photo by Henry NICHOLLS / POOL / AFP via Getty Images)

Britain's King Charles III and Queen Camilla are greeted by US Senator Dick Durbin, Democrat from Illinois, before the King's address to a Joint Meeting of Congress in the House Chamber at the US Capitol in Washington, DC, on April 28, 2026. (Photo by Henry NICHOLLS / POOL / AFP via Getty Images)

Britain's King Charles speaks with Nvidia CEO Jensen Huang, Amazon founder Jeff Bezos and AMD President Lisa Su during a meeting with chief executives from the technology industry at Blair House in in Washington, DC, on April 28, 2026. (Photo by Ken Cedeno / POOL / AFP via Getty Images)

Britain's King Charles III and Queen Camilla are greeted by former Speaker of the US House of Representatives Nancy Pelosi, before the King's address to a Joint Meeting of Congress in the House Chamber at the US Capitol in Washington, DC, on April 28, 2026. (Photo by Henry NICHOLLS / POOL / AFP via Getty Images)