Obama family announces death of family dog Bo, the "loyal companion" who spent two terms in the White House

Former President Barack Obama's family dog, Bo, who spent two terms in the Obama White House, has died of cancer, Barack and Michelle Obama announced on Saturday. 

The Obamas posted a series of photos of Bo on social media on Saturday, paying tribute to the role the dog had in their family. On Instagram, former first lady Michelle Obama said they had to say goodbye to their "best friend" after his battle with cancer.  She said that Bo, who was gifted to the Obama's in 2009 from the late senator Ted Kennedy, was originally adopted as a companion for their daughters. The Obama's other Portuguese water dog, Sunny, moved into the White House in 2013.