Barack Obama was elected the nation's first black president Tuesday night in a historic triumph that overcame racial barriers as old as America itself.
The 47-year-old Democratic senator from Illinois sealed his victory by defeating Republican Sen. John McCain in a string of wins in hardfought battleground states - Ohio, Florida, Virginia and Iowa.
His victory speech was delivered before a multiracial crowd of more than 100,000 people. Many cried and nodded their heads while he spoke surrounded by clear bulletproof screens on his left and right.