US Secret Service block a street near the White House before US President Donald Trump and First Lady Melania Trump greet Britain's King Charles III and Queen Camilla for an arrival ceremony on the South Lawn of the White House in Washington, DC, on April 28, 2026. (Photo by Aaron Schwartz / AFP via Getty Images)

US Secret Service block a street near the White House before US President Donald Trump and First Lady Melania Trump greet Britain's King Charles III and Queen Camilla for an arrival ceremony on the South Lawn of the White House in Washington, DC, on April 28, 2026. (Photo by Aaron Schwartz / AFP via Getty Images)

Guests wait in the rain for US President Donald Trump and First Lady Melania Trump to greet Britain's King Charles III and Queen Camilla for 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)

UK and US flags fly near the White House, ahead of US President Donald Trump hosting Britain's King Charles III and Queen Camilla for a State Visit in Washington, DC, on April 28, 2026. (Photo by Aaron Schwartz / AFP via Getty Images)

US President Donald Trump, First Lady Melania Trump, Britain's King Charles III and Britain's Queen Camilla look at a display as they tour the White House beehive on the South Lawn of the White House in Washington, DC, on April 27, 2026. (Photo by Suzanne Plunkett / POOL / AFP via Getty Images)

Britain's King Charles III and Queen Camilla arrive at Joint Base Andrews, Maryland, on April 27, 2026. King Charles III arrives in Washington Monday for a high-stakes state visit aimed at salvaging Britain's frayed ties with Donald Trump, amid extra-tight security following an attack on a gala dinner attended by the US president. Tensions over the Iran war have rocked the so-called "special relationship" ahead of a trip that was meant to mark the United States' 250th anniversary of independence from the British monarch's ancestors. (Photo by HENRY NICHOLLS / POOL / AFP via Getty Images)

Britain's King Charles III and Britain's Queen Camilla are greeted by US Protocol Chief Monica Crowley as they arrive at Joint Base Andrews, Maryland, on April 27, 2026. King Charles III arrives in Washington Monday for a high-stakes state visit aimed at salvaging Britain's frayed ties with Donald Trump, amid extra-tight security following an attack on a gala dinner attended by the US president. Tensions over the Iran war have rocked the so-called "special relationship" ahead of a trip that was meant to mark the United States' 250th anniversary of independence from the British monarch's ancestors. (Photo by Henry Nicholls / POOL / AFP via Getty Images)

Britain's King Charles III and Britain's Queen Camilla step off their plane upon arrival at Joint Base Andrews, Maryland, on April 27, 2026. King Charles III arrives in Washington Monday for a high-stakes state visit aimed at salvaging Britain's frayed ties with Donald Trump, amid extra-tight security following an attack on a gala dinner attended by the US president. Tensions over the Iran war have rocked the so-called "special relationship" ahead of a trip that was meant to mark the United States' 250th anniversary of independence from the British monarch's ancestors. (Photo by Kent NISHIMURA / AFP via Getty Images)