Barack Obama: “Scientific discovery takes far more than the occasional flash of brilliance.”

There’s no doubt that we are going through a period right now of disruption, polarization.

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.

For almost four decades, Nancy Pelosi served the American people and worked to make our country better.

I was a little tall for it.