Have Your Say: Who Won Last Night's Presidential Debate?

Donald Trump and Hillary Clinton faced off in the first presidential debate of the 2016 election Monday night, but who won?

Both candidates hoped to sway undecided voters in the neck and neck race in the 90-minute debate from Hofstra University in New York.

Cast your vote for who you think came out on top.

A disclaimer: Online reader polls like this one are not statistically representative of likely voters, and are not predictive of how the debate outcome will effect the election. They are a measure, however imprecise, of which candidates have the most energized online supporters, or most social media savvy fan base. After all, what they are counting is the number of Internet-devices controlled by people who want to vote.

The Republican nominee boasted winning numbers in similar online surveys on his Twitter account.

"Thank you!" he captioned screenshots of polls from Variety, The Hill, NJ.com and conservative news site Breitbart. "Four new #DebateNight polls with the MOVEMENT winning. Together, we will MAKE AMERICA SAFE & GREAT AGAIN!"

However, many polls found Clinton to be the victor. A CNN/ORC flash poll also found that 62 percent said the Democratic nominee won, compared to 27 percent who picked Trump. That's on par with 2012, when Mitt Romney was seen as the winner of the first debate.

In a Florida focus group organized by CNN, 18 of 20 undecided voters picked Clinton as the winner.