CBS GOP S.C. Debate: on Homeland Security

Donald Trump: How did W keep us safe? WTC came down during his watch

TRUMP: How did he keep us safe when the World Trade Center came down during the reign of George Bush? He kept us safe? That is not "safe," Marco. That is not safe.

RUBIO: The World Trade Center came down because Bill Clinton didn't kill Osama bin Laden when he had the chance to kill him.

TRUMP: George Bush had the chance, also, and he didn't listen to the advice of his CIA.

Jeb Bush: Reverse the sequester and rebuild the military

TRUMP: What we want to do, when we want to do it, and how hard do we want to hit? We are going to have to hit hard to knock out ISIS. We're going to have to learn who our allies are. We have allies, we have no idea who they are in Syria. Do we want to stay that route, or do we want to go and make something with Russia? But very important, who are we fighting with? Who are we fighting for?

BUSH: This is the problem. Donald Trump brought up the fact that he would accommodate Russia. Russia is not taking out ISIS. It is absolutely ludicrous to suggest that Russia could be a positive partner in this. I would restore the military, the sequester needs to be reversed. I would destroy ISIS, and I would create a policy of containment as it relates to Iran's ambitions and make it make clear that we are not going to allow Iran to move towards a nuclear weapon Those three things would be the first and foremost things that we need to do.

Marco Rubio: George W. Bush kept us safe and dealt with Hussein

KASICH: We thought there were weapons of mass destruction in Iraq. Colin Powell, who is one of the most distinguished generals in modern times said there were weapons there. The fact is we got ourselves in the middle of a civil war. The borders of that country were drawn after World War I by Westerners that didn't understand what was happening there. The tragedy of it is that we're still embroiled. If there weren't weapons of mass destruction we should never have gone.