US President Donald Trump and Britain's King Charles III speak during an arrival ceremony on the South Lawn of the White House in Washington, DC, on April 28, 2026. (Photo by Jim Watson / AFP via Getty Images)

US Vice President JD Vance applauds as 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 is applauded 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)

US President Donald Trump and First Lady Melania Trump speak with the press after bidding farewell to Britain's King Charles III and Queen Camilla as they departed the White House in Washington, DC, on April 28, 2026. (Photo by Jim Watson / 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 Henry Nicholls / POOL / AFP via Getty Images)

Britain's King Charles III greets people 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 Henry NICHOLLS / POOL / AFP via Getty Images)

US Vice President JD Vance and House Speaker Mike Johnson applaud as 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 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)