The hard truth is carbon pollution has built up in our atmosphere for decades now. And even if we Americans do our part, the planet will slowly keep warming for some time to come.

The only reason I send a single young man or woman in uniform anywhere in the world is because I think it's necessary to keep us safe.

Obviously, we've all had disagreements and differences in the past. I suspect we'll have them again in the future. But last night as Americans learned that the United States had carried out an operation that resulted in the capture and death of Osama bin Laden. I think we experienced the same sense of unity that prevailed on 9/11. We were reminded again that there is a pride in what this nation stands for. And what we can achieve that runs far deeper than party, far deeper than politics.

And I believe the nation that invented the automobile cannot walk away from it.

What I want to try to do is unify the two wings of the Democratic Party. What's considered the more progressive wing of the Democratic Party - the more centrist wing of the party. I think we can craft an approach that is more American, pro-worker, pro-business, pro-growth.

I actually believe that some residue of discrimination would lessen, because it's my view that there is a certain percentage of the white population that stereotypes and makes assumptions about African Americans because they don't inject the history of slavery and Jim Crow into current incarceration rates, or crime rates, or poverty rates, or what have you.

My particular passion for Lincoln dates back from my earliest memories of politics.