President Trump was greeted by Britain’s full pomp and pageantry on his historic second state visit to the nation, becoming the only American leader to have been granted the honor twice following his 2019 visit during his first term. Mr. Trump, accompanied by the first lady, was staying at Windsor Castle on Wednesday night as the official guests of the King Charles III and Queen Camilla. The carefully choreographed events are being widely broadcast but are taking place behind closed doors — and gates — amid protests against Mr. Trump and political turbulence on both sides of the Atlantic. White House officials have denied that Mr. Trump created that message. Officials will be hoping that the gilded spectacle of the royal events will distract from the Epstein scandal, and will present a vision of enduring trans-Atlantic friendship in spite of areas of geopolitical tension.