By all accounts, the “dignified” phase of the president’s visit passed well; any possible frictions between the disparate participants dissolved away in the warm sandstone balm of Windsor Castle – “the ultimate”, as Donald Trump put it.
Everyone at the 52-yard long table for the state banquet behaved themselves, so far as we know. Aside from graceful speeches rich in historical and cultural references delivered (but not necessarily written by) President Trump and the King, whatever was said by the guests during the evening's drinks and dinner remains confidential.