Video Ad Feedback Trump's response about responsibility surprises Biden 03:21 - Source: CNN Final 2020 presidential debate 8 videos Video Ad Feedback Trump's response about responsibility surprises Biden 03:21 Now playing - Source: CNN Video Ad Feedback 'I ran because of you!': Trump sounds off at Biden 00:50 Now playing - Source: CNN Video Ad Feedback Biden and Trump's reactions spoke loudly in final debate 01:44 Now playing - Source: CNN Video Ad Feedback CNN's Abby Phillip breaks down Trump and Biden's debate performances 01:44 Now playing - Source: CNN Video Ad Feedback Daniel Dale: Trump was better behaved, but he lied more 02:52 Now playing - Source: CNN Video Ad Feedback Van Jones calls Trump's response 'inhuman' and sparks fiery debate 03:18 Now playing - Source: CNN Video Ad Feedback Undecided voters say who they will vote for after debate 02:43 Now playing - Source: CNN Video Ad Feedback Tapper: Trump running single most negative, sleazy campaign 01:44 Now playing - Source: CNN See More Videos CNN — Commentators share their thoughts on the second and final presidential debate on Twitter in real time.