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.

A guy named Adolf Hitler won an election in 1932 ... and 50 million people died as a result ... what I learned as a little kid is that politics is, in fact, very important.

Bernie Sanders did not wake up last night with this great idea that we should guarantee health care to all people as a right. Actually, it exists in every other major country on earth. You don't know that, because the media has forgotten to tell you that. But it does exist. In Denmark, because of union negotiations, the minimum wage is about $20 an hour. In Germany, you go to college tuition-free. In Finland, they actually pay you to go to college. Now, you don't know that in America because CBS forgot to tell you. But that is the reality.

The American people understand that we need real change in this country, in my view, a political revolution, which says to the people on top, "You know what, you guys can't have it all."

The Occupy Wall Street protests are shining a national spotlight on the most powerful, dangerous and secretive economic and political force in America.

We can`t allow racism and xenophobia to gain traction.

How can the United States be competitive globally if higher education is unaffordable? Germany, Austria, Denmark, Finland, Norway, Scotland and Sweden have no tuition for college. Other countries have low tuition. We need the best educated workforce in the world. Instead of spending endless amounts on the military, we need to invest in our young people.