From Greek mythology, Obama learned a lesson

To understand how Barack Obama won the presidential primary, you have to look at what he learned when he lost.
Obama defeated Hillary Rodham Clinton solidly in the Iowa caucuses in January, but five days later she beat him, painfully and unexpectedly, in New Hampshire. That loss showed him that toppling the royal family of Democratic politics would not come easily.
http://news.yahoo.com/s/ap/20080604/ap_on_el_pr/how_obama_won;_ylt=ArQDsg2GLcX.y5gt_r6qVGhh24cA