The Conservative Party asked me to.
I was asked by the Conservative Party twice to moderate leadership debates. I charged nothing for this. This was not a paid gig. I felt that it was a service and an engagement in democracy, and I felt that, from time to time, journalists who have the ability to do this sort of thing should be doing it to increase it. It is not an endorsement for any party or any candidate. It is simply a way of participating in the democratic process. I thought it was the right thing to do, and I did it twice, never for any party other than the Conservatives.