I will neither be a lobbyist nor a historian .... One of the advantages to me of not running for office is I don't even have to try to pretend to be nice to people I don't like ... and the notion of being a lobbyist, and having to go and try to be nice to people I don't like -- it would be ridiculous.
To be fair, he's never been very well-known for trying to pretend to be nice to people he didn't like while in office. Which is one of his few redeeming qualities (but not the only one).