A canceled state dinner highlights a fading White House tradition

In a time of so many would-have-been, could-have-been calendar appointments, this week should have seen an official White House state dinner. President Donald Trump and first lady Melania Trump had invited royalty to the White House: the King and Queen of Spain, Felipe VI and Letizia. The former is part of one of Europe's oldest lines of nobility, and the latter, a glamorous former journalist with a standing spot on several international best-dressed lists.