- The 10 November Republican debate, sponsored by Fox Business News and The Wall Street Journal, will be held in Milwaukee, Wisconsin. The debate, like the past three GOP debates, will be divided into two sessions.
- The first "undercard" debate, beginning at 7pm ET, will feature: New Jersey Governor Chris Christie, former Pennsylvania Senator Rick Santorum, Louisiana Governor Bobby Jindal and former Arkansas Governor Mike Huckabee.
- The main debate, airing at 9pm ET, will feature: real estate mogul Donald Trump, retired neurosurgeon Ben Carson, businesswoman Carly Fiorina, former Florida Governor Jeb Bush, Florida Senator Marco Rubio, Kentucky Senator Rand Paul, Texas Senator Ted Cruz and Ohio Governor John Kasich.
- Three candidates--former Virginia Governor Jim Gilmore, South Carolina Senator Lindsey Graham and former New York Governor George Pataki--did not qualify for either debate.
- The GOP debate will be available online at Fox Business News, through live broadcast, via mobil on the Fox News app and via radio on Fox Business News's SiriusXM Radio channel. IBTimes UK will be live blogging throughout the night beginning at 7pm ET/12am GMT.
And that's a wrap for the fourth Republican debate. The next debate, for Democratic candidates Hillary Clinton, Martin O'Malley and Bernie Sanders will be held on 14 November. It will be followed a month later with the fifth GOP debate on 15 December.
The candidates begin their closing statements, with several candidates attacking Clinton and fellow Democratic candidate Bernie Sanders. Here's a look at the top searched Republican candidates during this debate.
Senator Paul is asked about President Obama's climate change policies. Paul says that global warming is not only caused by humans but also by nature.
The candidates take turns attacking Hillary Clinton, as the debate begins to wrap up.
Cruz is asked if he would let a big bank, like a Bank of America, fail. He responds that he wold not bail the bank out and would essentially let it fail.
Carson says he would not break up big banks. Says he opposes Dodd-Frank and receives the support of Rubio.
Democratic frontrunner Clinton has taken to Twitter to tweet in both English and Spanish.
Donald Trump is booed for a second time when he hits at Carly Fiorina, asking, "Why does she keep interrupting us?" The candidates continue to discuss Russia and the ongoing crisis in the Middle East.
Trump says he supports Russia's Putin bombing the Islamic State. When Bush attempts to correct him, Trump says that Isis did in fact bomb Russia. Adds that the US should not be policing the world.
Bush hits back says that the US should enforce a no-fly zone above Syria and that the US should not support Syria's Bashar al Assad nor Putin. Fiorina jumps in and says she would rebuild many US military bases around the world and send more troops to Germany.
Carson, who in the past has struggled to answer questions regarding the economy and foreign policy, is asked about terrorism abroad. He responds: We have to make terrorists "look like losers."
Senator Rubio attacks Senator Paul "as a committed isolationist" after Paul calls him "not very conservative."
Marco! Marco! Marco! How is it conservative to add a trillion dollars that we can't even pay for?
Yes, I have a child tax credit increase and I'm proud of it.
- Marco Rubio
A brief Google Trends look at the undercard debate:
Trump, the most vocal against immigration reform, is asked about the appeals court decision to uphold a block against President Obama's immigration plan. The frontrunner said he is happy and reiterated he wanted to deport the 11 million undocumented immigrants in the US. Meanwhile, Kasich hits back calling Trump's plan "silly".
Ben Carson is asked about recent criticisms about anecdotes regarding his life. The retired neurosurgeon says that while he understands the vetting process, he would be okay if it happened to all candidates. He then deflects the question by attacking Hillary Clinton and the Benghazi scandal.
The lone female candidate on the Republican side, Carly Fiorina, gets perhaps the loudest applause when she says that corrupt politics need to be broken down.
Jeb Bush, who was originally slated as the favourite to win the nomination, has steadily declined in the polls. The former Florida governor appears to be slightly fiery tonight, arguing that he only got 4 minutes to talk during the last debate. Twitter was quick to respond.
Kasich, the governor of Ohio, calls for balancing the budget and takes another hit against his GOP opponents for their radical tax plans.