I pledge to you today that as president, in my first budget, I will introduce the largest increase in special education ever.

Fear is the most powerful enemy of reason.

I feel passionate about solving the climate crisis.

You know the old saying: you win some, you lose some... and then there's that little-known third category.

Humanity is sitting on a time bomb. If the vast majority of the world's scientists are right, we have just ten years to avert a major catastrophe that could send our entire planet's climate system into a tail-spin of epic destruction involving extreme weather, floods, droughts, epidemics and killer heat waves beyond anything we have ever experienced - a catastrophe of our own making.

It's as if we think the laws of physics are subject to debate and amendment and political contributions can sway the laws of physics.

Although I have a variety of obligations, the climate crisis is my central concern.