Donald Trump, Ben Carson, Jeb Bush, Ted Cruz, Scott Walker, Marco Rubio, Mike Huckabee, Rand Paul, John Kasich and Chris Christie will also participate in the Sept. 16 debate in Simi Valley, California.
CNN revised the criteria it used to select which candidates would qualify for the debate after complaints from Fiorina's camp following her strong performance at Fox's early debate on Aug. 6. While the network initially planned to select the top 10 candidates based on the average of public polls from July 16 to Sept. 10, CNN decided to also look at the top candidates in polls from Aug. 7 to Sept. 10. Any candidates polling in the top tier during the later period would also qualify for the upcoming debate.
The network will also hold an earlier forum for the candidates trailing in the polls: Rick Perry, Rick Santorum, Bobby Jindal, George Pataki and Lindsey Graham. Former Virginia Gov. Jim Gilmore did not meet CNN's polling threshold to participate in either debate.
Read more on the debate here.
CORRECTION: This article previously misstated the date of the CNN debate. It is on Sept. 16, not the 15th.
Also on HuffPost:
How to vote
Vote-by-mail ballot request deadline: Varies by state
For the Nov 3 election: States are making it easier for citizens to vote absentee by mail this year due to the coronavirus. Each state has its own rules for mail-in absentee voting. Visit your state election office website to find out if you can vote by mail.Get more informationTrack ballot status
In-person early voting dates: Varies by state
Sometimes circumstances make it hard or impossible for you to vote on Election Day. But your state may let you vote during a designated early voting period. You don't need an excuse to vote early. Visit your state election office website to find out whether they offer early voting.My Election Office
General Election: Nov 3, 2020
Polling hours on Election Day: Varies by state/localityMy Polling Place