Britain's King Charles III waves as his motorcade makes its way toward the US Capitol before he addresses a Joint Meeting of Congress in Washington, DC, on April 28, 2026. (Photo by Aaron Schwartz / AFP via Getty Images)

WASHINGTON, DC - APRIL 28: US President Donald Trump meets with Britain's King Charles III in the Oval Office of the White House on day two of the State Visit of King Charles III and Queen Camilla to the United States of America, on April 28, 2026 in Washington, DC. King Charles III and Queen Camilla will visit the nation's capital, New York City, and Virginia during the trip arranged to celebrate the United States of America's 250th anniversary of its independence. (Photo by Aaron Chown - Pool/Getty Images)

WASHINGTON, DC - APRIL 28: US President Donald Trump meets with King Charles III in the Oval Office of the White House as (L-R) Sir Christian Turner, British ambassador to the US, Yvette Cooper, U.S. Vice President JD Vance, U.S. Secretary of State Marco Rubio look on, during day two of the State Visit of King Charles III and Queen Camilla to the United States of America, on April 28, 2026 in Washington, DC. King Charles III and Queen Camilla will visit the nation's capital, New York City, and Virginia during the trip arranged to celebrate the United States of America's 250th anniversary of its independence. (Photo by Aaron Chown - Pool/Getty Images)

WASHINGTON, DC - APRIL 28: US President Donald Trump meets with Britain's King Charles III in the Oval Office of the White House on day two of the State Visit of King Charles III and Queen Camilla to the United States of America, on April 28, 2026 in Washington, DC. King Charles III and Queen Camilla will visit the nation's capital, New York City, and Virginia during the trip arranged to celebrate the United States of America's 250th anniversary of its independence. (Photo by Aaron Chown - Pool/Getty Images)

WASHINGTON, DC - APRIL 28: US President Donald Trump meets with Britain's King Charles III in the Oval Office of the White House on day two of the State Visit of King Charles III and Queen Camilla to the United States of America, on April 28, 2026 in Washington, DC. King Charles III and Queen Camilla will visit the nation's capital, New York City, and Virginia during the trip arranged to celebrate the United States of America's 250th anniversary of its independence. (Photo by Aaron Chown - Pool/Getty Images)

WASHINGTON, DC - APRIL 28: US President Donald Trump meets with King Charles III in the Oval Office of the White House as (L-R) Sir Christian Turner, British ambassador to the US, Yvette Cooper, U.S. Vice President JD Vance, U.S. Secretary of State Marco Rubio look on, during day two of the State Visit of King Charles III and Queen Camilla to the United States of America, on April 28, 2026 in Washington, DC. King Charles III and Queen Camilla will visit the nation's capital, New York City, and Virginia during the trip arranged to celebrate the United States of America's 250th anniversary of its independence. (Photo by Aaron Chown - Pool/Getty Images)

WASHINGTON, DC - APRIL 28: US President Donald Trump meets with Britain's King Charles III in the Oval Office of the White House on day two of the State Visit of King Charles III and Queen Camilla to the United States of America, on April 28, 2026 in Washington, DC. King Charles III and Queen Camilla will visit the nation's capital, New York City, and Virginia during the trip arranged to celebrate the United States of America's 250th anniversary of its independence. (Photo by Aaron Chown - Pool/Getty Images)

US President Donald Trump, Britain's King Charles III, First Lady Melania Trump, and Queen Camilla walk through the Rose Garden on their way to the Oval Office following an arrival ceremony on the South Lawn of the White House in Washington, DC, on April 28, 2026. (Photo by Brendan Smialowski / AFP via Getty Images)