Republican presidential hopeful Sen. John McCain, R-Ariz., greets supporters following primaries in Virginia, Maryland, and the District of Columbia, Tuesday, Feb. 12, 2008, in Alexandria, Va. He is flanked by Rep. Tom Davis, R-Va., right, and Sen. John Warner, R-Va., left. McCain took another step toward securing his party's nomination, winning all three contests despite lukewarm support from the conservative base.
(Photo: AP Photo/J. Scott Applewhite)
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