The many faces of VP Joe Biden

Vice President Joe Biden brought up Mitt Romney's remarks that 47% of Americans are "dependent on government."

Vice President Joe Biden, left, and Republican vice presidential nominee Paul Ryan, of Wisconsin, greet spectators

Vice President Joe Biden and Republican vice presidential candidate Paul Ryan participated in the second of four debates during the election season.

Vice President Joe Biden was animated during the debate on Thursday night.

The vice presidential debate lasted 90 minutes, the same length as the three presidential debates in October.

Vice President Joe Biden's facial expressions ignited social media during the debate.

Vice President Joe Biden's facial expressions during the debate garnered interest on social media.

The debate was hosted by ABC News' Martha Raddatz.

The vice presidential debate largely centered on foreign policy.

U.S. Rep. Paul Ryan (R-WI) speaks during the debate on Thursday night.

Vice President Biden's and Rep. Paul Ryan's debate was seen by some as faster paced and more immersed in policy details than the first debate between their running mates.

Vice President Biden and Republican vice presidential nominee Paul Ryan  shake hands after the vice presidential debate that could be characterized as much more confrontational than President Obama's and Mitt Romney's first debate.

Thursday's debate was the first and only vice presidential debate of this election season.

Rep. Paul Ryan of Wisconsin listens to Vice President Joe Biden, who says the Afghanistan withdrawal plan is an Obama administration success.