I believe, along with Pope Francis and almost all scientists, that climate change is threatening this planet in horrendous ways, and that we have to be aggressive in transforming our energy system away from fossil fuel and defeat the Keystone Pipeline.

High-speed trains in Japan can now reach 375 mph - twice as fast as any public transit train in the United States. America's railroads were once the envy of the world. Today they are in disrepair and we are falling further and further behind the rest of the world. We need to rebuild our crumbling infrastructure, including rail. When we do that we not only make our country more productive and efficient, we create millions of new jobs.

We must fight to carry out his radical and bold vision for America.

As president, I will fight to make tuition in public colleges and universities free, as well as substantially lower interest rates on student loans.

To my mind, what is most important now is the defeating of the worst candidate for president that I have seen in my lifetime, Donald Trump, who is not qualified to be president by temperament, not qualified to be president by the ideas that he has brought forth.

I believe what Martin Luther King Jr. believed. You remember what the title of the March on Washington was? "Jobs and Freedom." What King understood is that you have to deal with the economic issues as well as the political issues and the civil rights issues.

I am disappointed that after all of the struggles that we have had in this country for such a long time, trying to get through and beyond racism and bigotry and discrimination - I think it is sad. It just tells us the kind of work that we have to do as - as America, as a nation.