Giving up is not an option if we want to prevent irreparable harm to our planet.

It is beyond my comprehension why today in America, hundreds of thousands of bright young people are unable to go to college - for one reason: that their family lacks the funding. And together we are going to change that.

It means joining with allies to deploy renewable energy technologies -- both at home and around the world -- to confront the very real and present danger of potentially irreversible climate change.

But on the other hand, there are many corporations who have turned their backs on the American worker, who have said, if I can make another nickel in profit by going to China and shutting down in the United States of America, that's what I will do.

If people envisage me in the Senate they might think of me as someone who would emulate Paul Wellstone, fighting for the issues he fought for. He was a good friend of mine. We'll be trying to do a couple of things. One is fighting for national health care. Another is fighting to raise the minimum wage to a living wage, and changing our trade policies.

It's better to show up than to give up.

Countering violent extremism and destroying ISIS must be done primarily by Muslim nations with the strong support of their global partners.