US Democratic presidential candidate and US Senator Barack Obama jogs off the stage after speaking in Mitchell, South Dakota June 1, 2008. [Agencies]
US Democratic presidential candidate Senator Hillary Clinton greets a baby at Tally's restaurant in Rapid City, South Dakota June 2, 2008. Barack Obama sealed the US Democratic presidential nomination Tuesday, a historic step toward his once-improbable goal of becoming the first black president of the United States. A defeated Hillary Rodham Clinton maneuvered for the vice presidential spot on his fall ticket. [Agencies]