October 31: The Obamas open up the White House to 2,000 school children for Halloween. Here, Michelle Obama — dressed as a cat — and President Obama — dressed as President Obama — greet the trick-or-treaters.
Newscom/UPI/Kristoffer Tripplaar
Performers entertain the revelers.
Newscom/UPI/Kristoffer Tripplaar
The guests arrive.
Official White House photo by Pete Souza
Costumed guests and performers dressed as fluttering butterflies.
Official White House photo by Pete Souza
A performer, dressed as a tree, sways through the crowd.
Official White House photo by Pete Souza
The First Couple (and First Grandma) hand out White House M&Ms, dried fruit and butter cookies.
Newscom/UPI/Kristoffer Tripplaar
Mr. President, meet Spiderman.
Official White House photo by Pete Souza
George Washington, we imagine, never saw anything like this in his day.
Newscom/UPI/Kristoffer Tripplaar
As part of the festivities, the Obamas host a reception for military families in the East Room.
Official White House photo by Pete Souza
Press Secretary Robert Gibbs channels the Dark Side.
Newscom/UPI/Kristoffer Tripplaar
Official White House Photo Pete Souza
The White House, lit up in orange for the occasion.
Newscom/UPI/Kristoffer Tripplaar