First Lady Michelle Obama, with Obama family pets, Bo and Sunny, greets children during a Christmas holiday program at the Children’s National Medical Center in Washington, D.C., Dec. 16, 2013. (Official White House Photo by Amanda Lucidon)

First Lady Michelle Obama, with Obama family pets, Bo and Sunny, greets children during a Christmas holiday program at the Children’s National Medical Center in Washington, D.C., Dec. 16, 2013. (Official White House Photo by Amanda Lucidon)