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Republican candidates clash over how to counter IS Republican candidates clash over how to counter IS
(35 minutes later)
Republican presidential candidates are sparring over national security issues and how best to counter the so-called Islamic State (IS) in the first debate since attacks in California and Paris.Republican presidential candidates are sparring over national security issues and how best to counter the so-called Islamic State (IS) in the first debate since attacks in California and Paris.
A major fault line has formed between those favouring more surveillance and those concerned about civil liberties.A major fault line has formed between those favouring more surveillance and those concerned about civil liberties.
Front runner Donald Trump has been on the defensive, with Jeb Bush calling him a "chaos candidate".Front runner Donald Trump has been on the defensive, with Jeb Bush calling him a "chaos candidate".
Senators Marco Rubio and Ted Cruz have also clashed on surveillance. Senators Marco Rubio and Ted Cruz also clashed over government surveillance.
Mr Trump's proposed ban on Muslims entering the US put Mr Trump on the defensive in the early minutes of the debate.Mr Trump's proposed ban on Muslims entering the US put Mr Trump on the defensive in the early minutes of the debate.
"We are not talking about isolation, we're talking about security," Mr Trump said. "We are not talking about religion, we are talking about security.""We are not talking about isolation, we're talking about security," Mr Trump said. "We are not talking about religion, we are talking about security."
The conversation quickly broadened to broader issues of foreign policy and national security.The conversation quickly broadened to broader issues of foreign policy and national security.
Another of Mr Trump's proposals - "closing that Internet up" to stop IS recruitment - has been hotly debated, and earned the business mogul loud boos when he attempted to defend it.Another of Mr Trump's proposals - "closing that Internet up" to stop IS recruitment - has been hotly debated, and earned the business mogul loud boos when he attempted to defend it.
Mr Trump appeared confused by the crowd's response, saying: "these are people that want to kill us folks".
It was not the only time that the crowd played a part in the programme; on several occasions the audience's cheers and jeers forced a pause in the candidates' conversation. At one point, a heckler interrupted Mr Trump with inaudible comments.
Other highlights from the debate include:Other highlights from the debate include:
The Republican contest - in depthThe Republican contest - in depth
How to dump Trump - four ways his rivals might beat him at the debateHow to dump Trump - four ways his rivals might beat him at the debate
Muslims on Trump - Muslims in Las Vegas reflect on Trump ban planMuslims on Trump - Muslims in Las Vegas reflect on Trump ban plan
Cruz on the rise - five things to know about Trump's biggest threatCruz on the rise - five things to know about Trump's biggest threat
Clinton's secret agent? - Conspiracy theorists claim Trump is Hillary Clinton's plantClinton's secret agent? - Conspiracy theorists claim Trump is Hillary Clinton's plant
Mr Trump loomed large over the so-called undercard debate, with the four candidates split over the efficacy of his proposed ban.Mr Trump loomed large over the so-called undercard debate, with the four candidates split over the efficacy of his proposed ban.
Senator Lindsey Graham apologised to US-allied Muslim leaders saying: "I am sorry. He does not represent us".Senator Lindsey Graham apologised to US-allied Muslim leaders saying: "I am sorry. He does not represent us".
However, it was the threat of the so-called Islamic State (IS) that dominated the first debate.However, it was the threat of the so-called Islamic State (IS) that dominated the first debate.
The candidates argued at-length over whether US troops should be sent to Syria and Iraq to engage in direct combat with IS militants.The candidates argued at-length over whether US troops should be sent to Syria and Iraq to engage in direct combat with IS militants.
Mr Graham led the rhetorical charge into battle, while former Arkansas Governor Mike Huckabee said US troops were exhausted after the wars in Iraq and Afghanistan.Mr Graham led the rhetorical charge into battle, while former Arkansas Governor Mike Huckabee said US troops were exhausted after the wars in Iraq and Afghanistan.