Caroline Olivia Wolf of Chicago reacts to early polls in the non-ticket holder area of Grant Park where later tonight Democratic U.S. presidential nominee Sen. Barack Obama (D-IL) is to address an election night rally expected to draw as many as a million people November 4, 2008 in Chicago, Illinois. After nearly two years of presidential campaigning, U.S. citizens go to the polls today to vote in the election between Democratic presidential nominee U.S. Sen. Barack Obama (D-IL) and Republican nominee U.S. Sen. John McCain (R-AZ). (Photo by Michal Czerwonka/Getty Images)