Attendees stand and applaud as Britain's King Charles III, flanked by Queen Camilla, House Speaker Mike Johnson and US Vice President JD Vance, addresses 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)

Members of Congress applaud as Britain's King Charles III arrives to speak to a Joint Meeting of Congress in the House Chamber at the US Capitol in Washington, DC, on April 28, 2026. (Photo by ROBERTO SCHMIDT / AFP via Getty Images)

Britain's King Charles III, flanked by Queen Camilla, House Speaker Mike Johnson and US Vice President JD Vance, addresses 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)

US Vice President JD Vance and US Speaker of the House Mike Johnson applaud the arrival of Britain's King Charles III before speaking 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)

House Speaker Mike Johnson and US Vice President JD Vance listen 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 SAUL LOEB / AFP via Getty Images)

Britain's King Charles III greets people as he arrives with Queen Camilla to address a Joint Meeting of Congress in the House Chamber at the US Capitol in Washington, DC, on April 28, 2026. (Photo by ROBERTO SCHMIDT / 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 ROBERTO SCHMIDT / AFP via Getty Images)

US Vice President JD Vance and US Speaker of the House Mike Johnson applaud the arrival of Britain's King Charles III to speak 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)