Guide for the 3rd Clinton-Trump presidential debate: What you need to know

The Thomas & Mack Center on the University of Nevada Las Vegas campus, site of the third 2016 presidential debate between Republican Donald Trump and Democrat Hillary Clinton.

Democratic presidential nominee Hillary Clinton and Republican opponent Donald Trump meet tonight for their third and final debate.

Here’s what you need to know ahead of the debate:

When: Wednesday, Oct. 19, 2016 at 9 p.m.

Where: University of Nevada, Las Vegas

Moderator: Chris Wallace of Fox News.

Format: The debate will run for 90 minutes without commercial interruption. There will be six 15-minute segments, with each segment focusing on a different topic.

Topics: Debt and entitlements, immigration, economy, Supreme Court, foreign hot spots, fitness to be president.

How to watch: The debate will air on the major broadcast networks and cable news outlets and be available for streaming on many websites, including

Where to watch: There are a handful of debate-watching parties in Philadelphia, if you're looking for a group to watch with. Options include La Peg's #ImWithTacos "Proudly Biased" viewing party, WPHT's party at Chickie's & Pete's, a Weavers Way Co-Op watch party and a watch party with specials at Cavanaugh's University City. Regal Cinemas theaters – including those in Philadelphia, King of Prussia and Burlington – will show the debate for free, for anyone wanting to watch on the big screen.

What to watch for: The Associated Press says issues to watch for tonight include: Trump's claims of a rigged election, the Clinton campaign's hacked emails, allegations of Trump's sexual advances, Trump vs. the rest of the GOP, how much attention is paid to policy, the candidates' fitness to be president, how Trump and Clinton use the stage to try to rattle each other and the moderation.

What happened in previous debates: Here are recaps of the nominees’ first and second debates, which both featured testy exchanges, as well as personal and policy clashes. And in both the first and second debates, found a number of misstatements and distorted facts.

Staff writer Nick Vadala contributed to this report.