Britain's King Charles III shakes hands with US Interior Secretary Doug Burgum after addressing a Joint Meeting of Congress in the House Chamber at the US Capitol in Washington, DC, on April 28, 2026. (Photo by Kent NISHIMURA / AFP via Getty Images)

Britain's King Charles III speaks to a Joint Meeting of Congress in the House Chamber at the US Capitol in Washington, DC, on April 28, 2026. (Photo by Kent NISHIMURA / AFP via Getty Images)

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

Britain's King Charles III speaks to a Joint Meeting of Congress in the House Chamber at the US Capitol in Washington, DC, on April 28, 2026. (Photo by Kent NISHIMURA / AFP via Getty Images)

Britain's King Charles III greets House Speaker Mike Johnson flanked by US Vice President JD Vance as he arrives to address a Joint Meeting of Congress in the House Chamber at the US Capitol in Washington, DC, on April 28, 2026. (Photo by SAUL LOEB / AFP via Getty Images)

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

Britain's King Charles III addresses a Joint Meeting of Congress in the House Chamber at the US Capitol in Washington, DC, on April 28, 2026. (Photo by Kent NISHIMURA / AFP via Getty Images)