London Mayor Boris Johnson said he did not know whether he would stand again as an MP after being repeatedly questioned about his ambitions by a caller on live radio.
There has been growing speculation that the mayor could stand for Parliament before the end of his term in 2016 and David Cameron has discussed the possibility of Mr Johnson returning to the Commons.
Asked about his ambitions on LBC 97.3 he said: “It was very kind of the Prime Minister to say what he said and obviously I want to be as supportive as I can. But I’ve got a very big job to do and that’s what I’m going to do.”
But caller Tony from Woodford pressed Mr Johnson to give a “straight answer” to the question about his future ambitions.
Asked whether he would like to become an MP the mayor replied: “I would like to play rugby for England … this is worse than Jeremy Paxman.”