Hillary Clinton today ended her historic campaign for the presidency and told supporters to unite behind rival Barack Obama, closing out a race that was as gruelling as it was groundbreaking.

Hillary Clinton has ended her historic quest for the presidency and endorsed Democratic rival Barack Obama.

Swept into the most powerful political job ever held by a US woman, Nancy Pelosi embarked on a jubilant victory lap with children and grandchildren in tow and a soundtrack by Tony Bennett: I Left My Heart in San Francisco.”