[Donald] Trump comes along and is singing a different song. He says, "I don't need your money; I'm rich enough on my own to run." And he says, "I think we need these programs." And, lo and behold, a lot of Republican voters liked what he said.

They [the Kochs] want free trade and cheap labour. They own the second-largest private company in America, which is a huge multinational corporation. So they are on a different wavelength.

I think the scary thing is that there is in place already a sprawling infrastructure of advocacy groups, think tanks, academics and candidates and politicians funded by the Kochs and other deep-pocketed groups on the far right ready to attack Hillary Clinton.

It's hard for them to run away from their record. The Kochs are businessmen.

Well, they are critics of the Bush administration generally on the human rights record of the administration, and in particular, they are very, very critical of this use of science.

There have been waves of reform in the past. I see no reason why they wouldn't happen again.

So in a strange way, even though Trump is a billionaire, what he's been saying is, "Everything's rigged, it's all corrupt and I'm not corrupt because I'm my own billionaire." Both [Donald] Trump and Bernie Sanders made a lot of hay by making that argument.