In the first presidential debate between President Obama and Republican challenger Mitt Romney, a few terms and figures became flash points for later discussion. Here's a closer look at a few of these disputed terms that are likely to come up in Thursday's vice presidential debate.
Mitt Romney's claim is belied by a large and growing body of academic studies. Democrats pounced on the remarks, which came a day after the GOP presidential nominee's comments on abortion stirred controversy.
Thursday night may be Representative Paul Ryan's first debate on a national television stage, but Vice President Joe Biden is an old hand. Four years ago he debated Sarah Palin, and before that he was on stage in the presidential primaries.
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