Queen Elizabeth II invited Donald and Melania Trump for a state visit to the United Kingdom, where the president and first lady are going to commemorate the 75th anniversary of the D-Day landings on Normandy Beach in France, just across the English Channel.

But … it happens that four of the president’s five children also showed up, too. They all had seats at the state dinner. They’ve been photographed sightseeing and, oh, just being seen.

We have Don Jr., Eric and his wife, Ivanka and her husband Jared Kushner and Tiffany all on board. Barron, the first couple’s teenaged son, isn’t there, I suppose.

Some folks are wondering how the adult Trumps were allowed to attend a visit that reportedly included an invitation only to Dad and his wife.

Of particular interest is the presence of Don Jr., Eric and Tiffany, none of whom have positions within the administration; Ivanka and Jared, of course, are “senior advisers” to the president.

Still, the invitation reportedly only was sent to the first couple.

What are those younger Trumps doing there?