Jeremy Paxman has said his former programme, Newsnight, is made by “13-year-olds”.
The presenter left the BBC Two flagship earlier this month after 25 years.
In an interview with Boris Johnson in his last episode, the London mayor described him as a “one-nation Tory”.
Speaking at the Chalke Valley History Festival, The Daily Telegraph reports him as saying: "I have to be frank, I suppose I am a one-nation Tory, yes…
"Look, Newsnight is made by 13-year-olds. It's perfectly normal when you're young that you want to change the world.
"The older you get, the more you realise what a fools' errand much of that is and that the thing to do is to manage the best you can to the advantage of as many people as possible."