For the sake of our children and our future, we must do more to combat climate change. Now, it's true that no single event makes a trend. But the fact is the 12 hottest years on record have all come in the last 15. Heat waves, droughts, wildfires, floods-all are now more frequent and more intense. We can choose to believe that Superstorm Sandy, and the most severe drought in decades, and the worst wildfires some states have ever seen were all just a freak coincidence. Or we can choose to believe in the overwhelming judgment of science-and act before it's too late.

Our politics at its best involves us recognizing ourselves in each other. And our politics at its worst are when we see immigrants or women or blacks or gays or Mexicans as somehow separate, apart from us.

Be the best father you can be to your children. Because nothing is more important.

I do believe that Chancellor Merkel and Germany are a lynchpin in protecting the basic tenets of a liberal, market-based democratic order that has created unprecedented prosperity and security for Europe, but also for the world.

When Americans are called on to innovate, that's what we do - whether it's making more fuel-efficient cars or more fuel-efficient appliances, or making sure that we are putting in place the kinds of equipment that prevents harm to the ozone layer and eliminates acid rain. At every one of these steps, there have been folks who have said it can't be done. There have been naysayers who said this is going to destroy jobs and destroy industry. And it doesn't happen because once we have a clear target to meet, we typically meet it. And we find the best ways to do it.

All of these different strands in me - the black, the white, the African - all of that has contributed directly to my success because when I meet people, I see a piece of myself in them. And maybe they see a piece of themselves in me.

I'm not so out of touch that I don't see how young people interact today.It was horrific. And that's an example of something that it's not as if that's the first time that a hate crime has taken place in this country. Hate crimes have been taking place for hundreds of years in this country, but it's there on video.