I am so grateful to America and all it has given to me.

When Colin Powell showed up as Secretary of State in 2001, most State Department employees still didn't even have computers on their desks. When I got there they were not mostly permitted to have handheld devices. I mean, so you're thinking how do we operate in this new environment dominated by technology, globalizing forces? We have to change, and I can't expect people to change if I don't try to model it and lead it.

I will do everything I can to reach out to everybody.

What Donald Trump is proposing with these massive tax cuts will result in a $20 trillion additional national debt. That will have dire consequences for Social Security and Medicare.

That is the number-one threat we face in the world. And it becomes particularly threatening if terrorists ever get their hands on any nuclear material. So a man who can be provoked by a tweet should not have his fingers anywhere near the nuclear codes, as far as I think anyone with any sense about this should be concerned.

I have to say, that I am delighted that Secretary [Hillary] Clinton month after month after month seems to be adopting more and more of the positions that we have advocated.

I care deeply about Democratic party and our agenda and making sure that we can continue to build on President [Barack] Obama`s legacy. So any suggestion that I am doing anything other than manage this primary impartially and neutrally is ludicrous.