When Barack Obama was running for president, he asked me to help lead his search for a running mate, and I supported Joe Biden. Their strong partners… - Caroline Kennedy

It is time for a President who understands that his responsibility is to articulate a vision and inspire others to achieve it; who holds himself, and those around him to the highest ethical standards; who appeals to the hopes of those who still believe in the American Dream, and those around the world who still believe in the American ideal; who can lift our spirits, and make us believe again that our country needs each of us to get involved. And now I'd like to introduce the person I believe will be that President - Barack Obama.

I have admired Joe Biden since I was a Senate intern, in 1974. He was a new senator, devout Catholic, and devoted father to two young sons who had just lost their mother and sister. Teddy recognized him as someone who shared his belief that government should always be on the side of those who need help. In their own families and beyond, they gave others strength in times of loss. They never stopped listening to those who were struggling and treated everyone with dignity. They fought for working families. They worked across the aisle to get the best deal possible and battled to protect the gains they had won. They shared an empathy for others and a commitment to service over self.

And this summer as he faced yet another challenge, he and Vicky have taught us all about dignity, courage and the power of love. In this campaign, Barack Obama has no greater champion and when he's president he will have no stronger partner in the United States Senate.