A couple of aspiring reality-TV stars from Northern Virginia appear to have crashed the White House’s state dinner Tuesday night, penetrating layers of security with no invitation to mingle with the likes of Vice President Biden and White House Chief of Staff Rahm Emanuel…

While the White House offered no official explanation, it appears to be the first time in modern history that anyone has crashed a White House state dinner. The uninvited guests were in the same room as President Obama, first lady Michelle Obama and Indian Prime Minister Manmohan Singh, although it is unknown whether they met the Obamas and the guest of honor…

How could it happen? A former White House senior staffer — who more than a decade ago encountered a crasher at one of the executive mansion’s less-fancy parties — offered this theory:

A savvy pair of crashers, dressed to the nines, might arrive on foot at the visitors’ entrance, announce their names — then express shock and concern when the security detail at the gate failed to find them on the guest list. On a rainy night like Tuesday, with a crowd of 300-plus arriving, security might have lost track of or granted a modicum of sympathy to a pair who certainly looked like they belonged there. If their IDs didn’t send up any red flags in the screening process, they would be sent through the magnetometers and into the White House.