• George Stephanopoulos: You'll be his number one character witness on the campaign trail.

• Ann Romney : Well, I've been with him for a long time. I've known him since he was 18 years old and I know his heart, I know the goodness of him and I know that he's there putting himself.

It's a sacrifice, what we're doing right now. It's not an easy thing. It was not an easy decision to come here and to make the decision to run.

It's put a strain on lots of different points in our life that would be a lot easier not to.

But in my heart of hearts, I know he's the best person.

• Governor Mitt Romney **: You see, fundamentally, a number of the issues that we've spoken about, they've been battered around for decades and they're tough issues, because they fit our interest to help women and let women make their own choices in their life, and our concern about imposing views of government on other people.

I mean, these are very tough issues combined with a real sense that there's human life involved.

But at the same time, what America faces right now are some unprecedented challenges, attacked by Jihadists, the emergence of Asia as an extraordinary tough competitor, tougher than we've ever faced before.

We're using too much oil. We're spending too much money. Our schools are failing a lot of our kids. Forty-plus million people don't have health insurance.

I want to solve those problems. I know how to do it.

Questions