With his London Development Agency taking an interest in colleges, some fear it wants to replace the Learning and Skills Council as the controller of post-16 funding in the capital.
But do his ambitions stop there? A look at the LDA's website shows the homepage carries a picture, not of central London but looking east over the outer reaches of London into the far distance, though the smog towards a place called England.
Does he intend to expand his territory? Or were his web page designers daydreaming about a better life, away from Ken's congestion charging utopia, in sleepy East Anglia?