Vice Presidential Debate

Vice President Biden and his Republican opponent, Rep. Paul Ryan of Wisconsin, had a lively debate at Centre College in Danville, Ky., this evening — one marked by Biden's aggressive challenges to many of the Republican vice presidential nominee's claims and Ryan's oft-repeated message that the Obama-Biden administration's policies aren't working.

The discussion was steered by ABC News' Martha Raddatz. It's the only vice presidential debate of the campaign.