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.

I want to start by saying something nice about President Bush. Of all the presidents we've had with the last name of Bush, his economic plan ranks in the top two.

That is what Americans do. We face a challenge - no matter how great - because we know that on the other side there is always hope.

Each and every child in this country is valuable because they are our future as a society. We cannot afford to lose a single child to ill-health, under-education, abuse, addiction, jail, or gun violence. America's highest goal should be for every child to grow up to be a successful young adult -- healthy, educated, free, secure, and a good citizen.

I have a plan to protect the environment so that we leave this place in better shape to our children than we were handed it by our parents.

Republican secretaries of state from Kissinger to Baker, Powell to Rice, President Bush, 71 United States Senators all supported President Obama's new START treaty, but not Mitt Romney.

The problems of health care can be solved if we stop giving tax cuts to those who have the most, and start making health care affordable for those working harder and harder for too little.