As the first presidential debate nears, look back at 12 cringe-worthy moments in debate history.
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'You're Likeable Enough, Hillary' -- Tension was already high between Democratic presidential candidate Hillary Clinton and Barack Obama in 2008 when Clinton fumbled speaking about her likeability. Obama looked up from his paper and interjected, "You're likable enough, Hillary," then promptly continued to write away. "I appreciate that," a laughing Clinton responded.