Hillary Clinton and Donald Trump face off for a second time in a town-hall style event at Washington University in St. Louis.
The rematch kicked off without a handshake, followed by questions regarding etiquette. Trump's recorded comments from 2005 about his pursuit of a married woman and Clinton's emails took center stage during the first 15 minutes of the town hall.
Here are some of the top reactions on Twitter during the presidential debate. [[396474271, C]]
