She was almost 15, it says, which is up there for a dog. You're thinking of young and spunky Barney who was a pup when President Bush took office.
Your observation about our President having troubling times is true, and it made me think of how he'll miss his good and faithful friend, who I am sure was a great comfort to him. This adds to his burdens in a way. Sad.
I just love the fact that this dog was born and died in that White House.