Campaigning For Key Primaries

Sen. Hillary Rodham Clinton, D-N.Y., and Sen. Barack Obama, D-Ill., speak during their debate Tuesday, Feb. 26, 2008, in Cleveland ahead of key primaries in Ohio and Texas. The Ohio and Texas primaries typically come well after the nominee is decided. But as Obama and Clinton have remained in a tight race for nominating delegates, the two contests are critical. Rhode Island and Vermont also hold primaries Tuesday.

Credit: AP Photo