Melania Trump appears to be breaking with this particular tradition.
On two pre-scheduled Washington stops Friday, one to Gallaudet University and the other to attend a National Cherry Blossom Festival committee meeting at the Japanese embassy, the first lady of Japan, Akie Abe, was alone, without Mrs. Trump to guide her.
Japanese Prime Minister Shinzo Abe did some of his own solo touring. He laid a wreath at the Tomb of the Unknown Soldier at Arlington National Cemetery. Remains there include unknown servicemembers killed in World War II. Prime Minister Abe met with President Trump at the White House and took questions from reporters in a joint press conference.
Mrs. Trump, who has decided to live in New York through the end of the school year with her and the President's son Barron, was on hand to greet the Abes Friday afternoon and flew with them and her husband aboard Air Force One to Palm Beach, Florida, for a weekend stay at Mar-a-Lago.
But Mrs. Abe's solo DC outings are nothing like her previous trips to the US capital city.
In 2015, Mrs. Abe joined Michelle Obama on a visit to a Great Falls, Virginia, elementary school, where the two women were cheered by students.
Later, the spouses reconnected at the White House for a State Dinner to honor Abe's trip to Washington.
And in 2007, Laura Bush joined her husband, George W. Bush, and Prime Minister Abe, in greeting the couple during another trip to
Washington, meeting them for tea at Blair House, and then walking over to the White House for dinner.
The two women also went on a solo jaunt to tour Mount Vernon, keeping one another company during a walk through the estate's gardens.
Mrs. Abe had no such luck with a companion today—instead she was accompanied by staffers and handlers.
There is a dinner scheduled this evening for the Abes and the Trumps at Mar-a-Lago, and on Saturday, it is expected the two spouses will be alone together while their husbands play golf and talk diplomacy.
But the unexplained absence of Melania Trump during Mrs. Abe's visit to the nation's capital, marks a departure from past tradition, something that's fast becoming a hallmark of this new Administration.
Requests for clarification about Mrs. Trump's whereabouts earlier in the day on Friday went unanswered by the White House. Mrs. Trump has not yet named her own spokesperson.