Trump and Charles greet each other warmly as the King begins a day of diplomacy in Washington

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WASHINGTON -- U.S. President Donald Trump and King Charles III greeted each other warmly on Tuesday as the monarch began a day of diplomacy in Washington designed to emphasize a bond between the United Kingdom and the United States that is so strong it can withstand the political turmoil of the moment.

Trump welcomed Charles and Queen Camilla to the White House in a ceremony on the South Lawn. The King shook hands with members of Trump’s Cabinet before joining the president for a rendition of the national anthem.

The leaders will huddle later in the Oval Office for a meeting that’s closed to the public, reducing the potential for the freewheeling, sometimes controversial meetings with foreign officials that have become routine during Trump’s second term.

Charles will later become the first British monarch to address the U.S. Congress since his mother, Queen Elizabeth II, in 1991. Her speech highlighted the shared history of both countries and the importance of their democratic values, themes Charles will likely reinforce on Tuesday.

Such addresses are an opportunity afforded to only the most prominent world leaders, including Pope Francis, Vaclav Havel and Winston Churchill. It will likely mark the most extensive public remarks Charles will deliver during a four-day visit to the U.S. that’s intended to celebrate the country’s 250th anniversary of independence from Britain.

House Speaker Mike Johnson, R-La., became the first sitting leader of his chamber to address the U.K. Parliament earlier this year. He attended a garden party with the King in Washington on Monday and said he told him he would be “well received” in Congress.

The visit comes at a challenging moment for U.S.-U.K. relations. Trump’s up-and-down relationship with British Prime Minister Keir Starmer has taken a particularly sour turn over the past several months as the Republican president has sought to rally international support for the war in Iran. Trump criticized Starmer, who has largely resisted his overtures, by saying “this is not Winston Churchill that we’re dealing with.”

Trump has also imposed tariffs on the U.K. and warned of additional levies despite a Supreme Court ruling earlier this year that has made such unilateral moves more challenging. Trump threatened just last week to slap a “big tariff” on the U.K. if it doesn’t scrap a digital services tax on U.S. technology companies.

Trump has more broadly challenged the traditional trans-Atlantic alliance with efforts to annex Greenland and threats to walk away from NATO. He has repeatedly imposed tariffs on and taunted Canada, a member of the British Commonwealth.

Meanwhile, Charles has faced some calls on Capitol Hill to meet with victims of Jeffrey Epstein while he is in the U.S. There’s no indication that he will do so even as the scandal involving the convicted sex offender has ensnared his brother, who was arrested in February over misconduct allegations, which he denies.

Rep. Ro Khanna, D-Calif., urged the King over the weekend to at least address the issue during his congressional speech.

House Democratic leader Hakeem Jeffries of New York blamed Republican policies on Monday for straining the U.S.-U.K. relationship.

“Hopefully, the King’s visit is going to go a long way toward repairing the damage that this administration has done to one of our most important allies in the world,” Jeffries said.

Charles and Camilla arrived at the nation’s capital on Monday and held a tea with the president and first lady Melania Trump. The royal couple will continue their U.S. trip later this week with stops in New York City and Virginia.

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By Steven Sloan And Josh Boak

Associated Press writer Stephen Groves in Washington contributed to this report.