DENVER - AUGUST 22:  A college student fills out a form during a voter registration drive August 22, 2008 in Denver, Colorado. The Democratic National Convention starts in Denver on Monday. Convention delegates from around the country are set to nominate Barack Obama as their Presidential candidate next Thursday. Getty Images logo Getty Images 45 months ago

DENVER - AUGUST 22: A college student fills out a form during a voter registration drive August 22, 2008 in Denver, Colorado. The Democratic National Convention starts in Denver on Monday. Convention delegates from around the country are set to nominate Barack Obama as their Presidential candidate next Thursday.