From a glittering state banquet to an outing with the Scouts, Princess Kate took a leading role during Donald and Melania Trump's state visit to the U.K. on September 17 and 18. The princess was seen laughing and sharing a toast with President Trump, and Seward said that Kate "obviously amused him." The Princess of Wales is seen with Donald Trump at Windsor Castle on September 17. (Image credit: Getty Images)The Princess of Wales is seen with Donald Trump at Windsor Castle on September 17. "It was really uplifting," Seward said of the state visit.