On the final day of primaries on June 3 , 2008 , Obama had gained enough pledged - .
Super-delegates to become the presumptive nominee ; she then suspended her campaign on June 7 , 2008 and endorsed Obama   .
On the final day of primaries on June 3 , 2008 , Obama had gained enough pledged - and super-delegates to become the presumptive nominee ; she then suspended her campaign on June 7 , 2008 and endorsed Barack Obama .