john-mccain-11.jpg

Summary: votes needed to clinch the Republican nomination following four big primary wins [source: USA Today ]. He became the presumptive 2008 presidential nominee for the Republican Party. Chip Somodevilla/Getty Images John McCain receives the endorsement of President George W. Bush on March 5, 2008, the day after McCain clinched the 2008 Republican presidential nomination.

Image Dimensions: 400 x 254