It plays right into the hands of ISIS. And that's why Americans need to know that Donald Trump's words are being used in recruitment videos that ISIS is putting out. I think that is a very serious problem.

I made policy decisions based on what I thought was right that keep Americans safe and to protect U.S. interests abroad. No wild political attacks by Donald Trump is going to change that.

I served on the budget committee in the Senate, and I remember as vividly as if it were yesterday when we had a hearing in which Alan Greenspan came and justified increasing spending and cutting taxes, saying that we didn't really need to pay down the debt - outrageous in my view.

There are many ways to be influential. You can work for politicians or in government and make a difference. And for young women who are interested in running for office, you just have to decide you're going to follow Eleanor Roosevelt's maxim about growing skin as thick as the hide of a rhinoceros, and you have to be incredibly well-prepared - better prepared [than a man], actually - and you have to figure out how you're going to present yourself, and you have to have a support group around you, because it can be really a brutal experience.

I would say that when you have a big dream or you're trying to solve a big problem, there will always be people who tell you that you can't. Here's my advice: don't listen.

I look at somebody like my husband or President Obama. They are so natural. I mean, they are fluid, they got the moves, they can just go into a room and really capture it, they've got charisma.

I have said publicly no option should be off the table, but I would certainly take nuclear weapons off the table.