Gary Hart: The Democratic party is once again faced with a decision: whether to stay with the known, the familiar, and the "experienced" or whether to accept a new generation of leadership composed of those who have not had power or the experience of governing. If you believe, as I do, that the early 21st century is an age of huge transition -- of globalization, of information, of failed states, of climate change, of rising new powers, and so on -- then leadership hamstrung by old arrangements and commitments will not do.
