Tonight we're going to do a little experiment; we'd like your help in fact-checking this evening's vice presidential debate.
As you watch the debate, we invite you to be on the lookout for any questionable claims made by Sen. Biden or Gov. Palin. For example, if one of them says something that runs counter to something you've heard them say in the past, you can help us out by tracking down a primary source for the original quote, like a transcript or video. Same thing if one of them cites a statistic: you can track down the original source and help us verify if it's accurate.
Once you've found the source, you can then get it to us by posting it to Twitter with the tag #factcheck included in your tweet. (If you're not a Twitter user, you can also post it in the comment thread below.) Our team will then use your suggestions as we investigate the candidates' claims.
Please be sure to check out the blog throughout the evening to see what transpires. We'll also be covering the debate on our Twitter account, @nprpolitics. We look forward to working with you tonight!