The Pennsylvania Democratic Party sent 187 delegates to the 2008 Democratic National Convention . Of those delegates , 158 were pledged , and 29 were unpledged . All of the 158 pledged delegates were allocated ( pledged ) to vote for a particular candidate at the National Convention according to the results of the Pennsylvania Presidential Primary . The 29 unpledged delegates were popularly called " superdelegates " because their vote represented their personal decisions , whereas the regular delegates ' votes represented the collective decision of many voters . The superdelegates were free to vote for any candidate at the National Convention and were selected by the Pennsylvania Democratic Party 's officials
2008 Democratic National Convention
2008 Democratic National Convention
2008 United States presidential election in Pennsylvania