Marco Rubio said he was personally open over a long period of time to offering a path to citizenship for immigrants here illegally. Rubio's work on a comprehensive immigration bill is one of his biggest vulnerabilities with Republican primary voters.

Here at home, we need to do two fundamental things. Number one, we need to recognize that technology has moved on. The Patriot Act was signed in 2001, roughly. The iPhone was invented in 2007. The iPad was invented in 2011. Snapchat and Twitter, all the rest of it, have been around just for several years. Technology has moved on, and the terrorists have moved on with it.

You know what the [Barack] Obama administration keeps getting wrong is whenever anything bad happens they focus on law-abiding citizens instead of focusing on the bad guys.

If you want a candidate who is led the fight against Obamacare, who will lift the burdens on small businesses and bring back jobs, I'm the only candidate in the race with that proven record.

I believe the American people are looking for someone to speak the truth.

In my view, republican primary debates ought to be moderated by people who would vote in a primary.

What Obama did wrong with executive power is he tried to change the law. He tried to ignore the law. And under the Constitution, Article I, all legislative authority is vested in Congress.