Democratic presidential hopefuls from left, former Sen. John Edwards, D-N.C.; Sen. Hillary Rodham Clinton, D-N.Y.; Sen. Barack Obama, D-Ill.; stand together before the start of the debate sponsored by CNN, YouTube and Google at The Citadel military college in Charleston, S.C.

First published in the July 24, 2007, 6:25 p.m. edition

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