King Charles and Prince William could visit the U.S. next year to mark the 250th anniversary of the Declaration of Independence and boost relations with Donald Trump, who has frequently spoken of his admiration and respect for the British monarchy.

Donald Trump was sworn into office on Monday for a second term in the White House, and international figures across the globe are sharing their reactions to the 47th president's inauguration. Here's what world leaders are saying: Russian President Vladimir Putin congratulated Trump on his return to office,

King Charles' message reportedly reflected on the relationship between the United States and the United Kingdom.

Britain’s King Charles has congratulated US president, Donald Trump on his inauguration as the 47th president of the United States. According to Buckingham Palace, the King reflected on the enduring special relationship between the UK and U.

King Charles has sent a personal message of congratulations to Donald Trump following his historic second inauguration as US President, Buckingham Palace has revealed. The monarch's private correspondence praised the special relationship between the United Kingdom and the United States.