Barack Obama: “The last I checked, Sarah Palin is not much of an expert on nuclear issues.”

Every president here today, as different as we are, has tried our best to uphold the values that John McCain and Mitt Romney believed in no less than I did.

Your task is not to impose litmus tests.

I think when you understand the complexities of America and the contradictions of America, I don’t think it makes you love it less. I think it makes you love it more.

And there’s no reason to suggest that we can’t get through this one either.