We have to be successful at the cutting-edge industries of the future like Twitter. But we also have always been a country that makes stuff.

What we can be scientifically certain of is that our continued use of fossil fuels is pushing us to a point of no return

To anyone out there who has ever been assaulted: You will never be alone. You are never alone. We have your back. I've got your back.

Today, the world lost a creative icon. Michelle and I join millions of fans from around the world in mourning the sudden death of Prince.

Just because we have the best hammer does not mean that every problem is a nail.

I know starting careers in troubled times is a challenge, but it is also a privilege. Because it's moments like these that force us to try harder, dig deeper and to discover gifts we never knew we had. To find the greatness that lies within each of us. So don't ever shy away from that endeavor. Don't stop adding to your body of work. I can promise that you will be the better for that continued effort as will be this nation that we all love.

We are willing to uphold principles that have resulted in unprecedented prosperity and security throughout Europe and around the world. With the threat of climate change only becoming more urgent, Angela [Merkel] and I focused on the need for American and E.U. leadership to advance global cooperation.