I think cyber security, cyber warfare will be one of the biggest challenges facing the next president, because clearly we're facing at this point two different kinds of adversaries. There are the independent hacking groups that do it mostly for commercial reasons to try to steal information that they can use to make money.

Laws have to be backed up with resources and political will. And deep-seated cultural codes, religious beliefs and structural biases have to be changed.

Let's start with protecting taxpayers and making sure we have more fairness in the system.

If you're too dangerous to fly, you're too dangerous to buy a gun.

I don't have any comment on who the people of Russia choose to be their leaders.

I want to join everyone in expressing my great sympathy and support for people who lost loved ones in this terrible terrorist attack [in Orlando] and everybody still in the hospital who is struggling and all the first responders.

I've spent 30 years, actually maybe a little more, working to help kids and families. And I want to take all that experience to the White House and do that every single day.