Amid political drama, it’s easy to forget that 1600 Pennsylvania Avenue in Washington, DC isn’t only the address of one of America’s branches of government - or a family home, America’s original work-from-home venue before WFH became a ‘thing’.The White House is also a global symbol of the historic roots of democracy. And it’s one of the pre-eminent museums of the history of the United States.It wasn’t always that way. This year, the White House Historical Association celebrates its 60th...