Kesha Wilson holds her 1-year-old son, Kamiyan Cooper, while family nurse practitioner Terrance James makes notes as part of an examination, at a county health center in Portland, Ore., in 2012.
First lady Nancy Reagan sits on the knee of Mr. T, dressed as Santa Claus, and gives him a peck on the head, as he joined her for a preview of the White House Christmas decor in 1983.
George W. Bush holds a press conference Dec. 17, 2000, where he named Alberto Gonzales chief White House lawyer, Condoleezza Rice (next to Bush) national security adviser and Karen Hughes (far right) counselor.
J. Scott Applewhite/AP
Republican presidential candidate Donald Trump speaks July 16 in New York City. The president-elect's Twitter habit could run up against cybersecurity recommendations once he's in office — but he may also choose to disregard that advice to keep his direct channel to the public open.
Bryan Thomas/Getty Images
President Obama meets with members of his national security team and cybersecurity advisers in February. Homeland security adviser Lisa Monaco and Office of Management and Budget Director Shaun Donovan are at right.
Mandel Ngan/AFP/Getty Images
This year's White House Gingerbread House is made with 150 pounds of gingerbread, 100 pounds of bread dough, 20 pounds of gum paste, 20 pounds of icing and 20 pounds of sculpted sugar pieces. It also features both the East and West Wings.