A large man holds a balloon on the floor of the Republican National Convention.

John McCain and Sarah Palin wave to the crowd during the balloon drop at the Republican National Convention.

Ohio delegates listen to John McCain's speech at the Republican National Convention. Ohio was a major swing state that went for Obama despite going for Republican President George W. Bush in 2004.

John McCain speaks on the final night of the Republican National Convention.

June Burkhart, a delegate from Willow, Alaska, talks with a reporter on the floor of the Republican National Convention.

Thousands of demonstrators swamped the downtown area of St. Paul, Minn. to protest the Republican National Convention. A man who identified himself only as Keith from Wisconsin sits in front of a line of riot police outside the Xcel Center.

John McCain speaks to supporters at a rally at the Spirit of St. Louis airport in Chesterfield, Mo. on Feb. 1, 2008.

Barack Obama pauses after completing his acceptance speech at the Democratic National Convention.

Barack Obama makes his acceptance speech at the Democratic National Convention. The final night of the convention was moved to Invesco Field to accommodate a larger crowd.

A delegate listens to speeches at Democratic National Convention.