The New York Times Agency Photos
CAMPAIGN OBAMA 4
(NYT29) WASHINGTON -- May 8, 2008 -- CAMPAIGN-OBAMA-4 -- Sen. Barack Obama (D-Ill.), center, greets tourists, left, and Congressional pages on Capitol Hill in Washington on Thursday, May 8, 2008. Hoping to win over more superdelegates, Obama visited the House floor on Thursday. (Doug Mills/The New York Times)