Not really. More a Sean Hannity or Rush Limbaugh type than the completely loony type. The whackiest he got was his obsession that the noise of wind farms causes some unspecified medical problem.
He was a speechwriter for a conservative Prime Minister and was the very successful head coach of our national rugby union team in the 80s.
But his main career was bullying politicians with his radio show, and he was particularly bilious towards women. A loathsome character overall.