We were sent to Vietnam to kill Communism. But we found instead that we were killing women and children.

Think about this: terrorism, epidemics, poverty, the proliferation of weapons of mass destruction-all challenges that know no borders-the reality is that climate change ranks right up there with every single one of them.

We must uphold the promise of Roosevelt, Truman, Kennedy, Johnson, Carter, and Clinton and never allow the President and his Republican friends to threaten Social Security by putting it on the Wall Street trading block.

As I have said for two years now, when Osama Bin Laden and al-Qaeda were cornered in the mountains of Tora Bora, it was wrong to outsource the job of capturing them to Afghan warlords who a week earlier were fighting against us.

I don't want to claim that God is on our side. As Abraham Lincoln told us, I want to pray humbly that we are on God's side.

America is the one that leads the effort to make sure the freedom of navigation in the South China Sea is protected.

In American elections there are no losers, because whether or not our candidates win or lose, the next morning we wake up as Americans.