I was just checking to see how old Bernie Sanders is (74) and these fill in my search options came up? What does this say about us? Why is age such a factor when thinking about these people? Obviously, with Bernie Sanders, I'm gauging his competency. He unfortunately looks his age. By the way, Hillary Clinton is 68, Donald Trump is 69, the earth is 4.543 billion years...and Justin Beiber is 21.