America is a strong and resilient country. And I know we will succeed, if we put aside partisanship and politics and work together as one nation.

I will cut investments in unproven missile defense systems.

I am somebody who usually writes out the rough draft in longhand. Then I type it into the computer, and that is where I do my editing. I find that if I write it on the computer, I go too quick. So I like getting that first draft out and then typing it in; you are less self-conscious about it.

Independent economists say immigration reform will grow our economy and shrink our deficits by almost $1 trillion in the next two decades. And for good reason: when people come here to fulfill their dreams - to study, invent, and contribute to our culture - they make our country a more attractive place for businesses to locate and create jobs for everyone. So let's get immigration reform done this year.

The changes in thinking about same-sex marriage have come slowly at first and then in rapid course. If such change is possible in this area, is it also possible in the vexed and sordid realm of race relations?

One of the issues the Democrats have to be clear on is the given population distribution across the country. We have to compete everywhere. We have to show up everywhere. We have to work at a grassroots level, something that's been a running thread in my career.

In a world of complex threats, our security and leadership depends on all elements of our power - including strong and principled diplomacy.