Candidates Push for March 4 Votes

Sens. Barack Obama, (D-Ill.), and Hillary Rodham Clinton, (D-N.Y.), campaign hard ahead of primaries on Tuesday, March 4, in Ohio and Texas, contests that could make or break Clinton's campaign. Meanwhile, Sen. John McCain, (R-Ariz.) and former Arkansas Gov. Mike Huckabee also make last-minute pitches to voters in the two states.

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