Hillary Clinton and Donald Trump will face off in St. Louis Sunday as they attempt to make their cases to the American people about why they are each better suited to be the president of the United States.

The Republican presidential nominee was already facing a defining moment in his campaign following a poorly received opening debate performance on Long Island late last month. Now, as his candidacy seems to be teetering on the brink following the release of a 2005 video that depicted the real estate mogul using graphic language as he describes groping women, Trump needs nothing short of a Hail Mary to revive his hopes of overtaking Hillary Clinton.

It's the second of three presidential debates leading up to the November 8th presidential election.

The when and where

The debate will be held at 8 p.m. on Sunday, October 9 in Washington University's Athletic Complex.


Anderson Cooper and Martha Raddatz

CNN's Anderson Cooper and ABC's Martha Raddatz will be moderating the town hall-style debate. The moderator selections were announced last month by the Commission on Presidential Debates.

Sunday's debate will be the first Cooper has hosted in his career. Raddatz hosted the 2012 vice presidential debate between Joe Biden and Paul Ryan.

Town hall style format

The second debate will differ from the first in format. Sunday's debate will be town hall style, meaning half of the questions will come from the moderators, and the other half will come directly from the American people.

ABC and CNN have agreed to consider the 30 most popular questions posed online when they were planning the debate. Some of the most highly voted topics include background checks for gun sales, Social Security, term limits for Congress and the Supreme Court, Citizens United, healthcare and climate change. Not all 30 questions will be asked, but they will be considered.