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.

I think, clearly, we got to work closely with China to resolve the serious problems we have, and I worry about Putin and his military adventurism in the Crimea and the Ukraine.

Super PACs and a corrupt campaign finance system are destroying American democracy. We're proud that we have received four million individual contributions, more than any candidate in American history at this point.

We can combat climate change effectively. What we are lacking now is not the brain power, not the knowledge, not the technology. What we are lacking is the political will power, and we need your help by the millions to tell Congress to stop worrying about their fossil fuel contributors to their campaigns and worry about their kids and grandchildren.

I believe in public funding of elections, absolutely. But this system iscurrently very antiquated and no longer applies to modern day politics.

Wall Street has enormous power over the Republican Party, enormous power over the Democratic Party.

We need to recognize the incredible challenges that so many parents face, especially working moms. We need to join the rest of the advanced world.