Democratic presidential candidate Sen. Barack Obama, D-Ill. speaks during news conference in Clearwater, Fla., Wednesday, Sept. 24, 2008. In response to Republican John McCain's statement Wednesday that he wants to postpone Friday's debate to deal with the nation's financial problems, Obama said "it's more important than ever" that the country hear from its next president. (AP Photo/Chris Carlson)

Democratic presidential candidate Sen. Barack Obama, D-Ill. speaks during news conference in Clearwater, Fla., Wednesday, Sept. 24, 2008. In response to Republican John McCain's statement Wednesday that he wants to postpone Friday's debate to deal with the nation's financial problems, Obama said "it's more important than ever" that the country hear from its next president. (AP Photo/Chris Carlson)