Will there be TV debates next time around? When I put the question to one of Mr Cameron's circle, he responded: "Ask me in two years." The honest answer is that each of the leaders will make a calculation whether it is in their best interests much closer to the time. As the incumbent, Mr Cameron will have to weigh up the perils of taking part against the risk of being seen to run away. If they do happen again, it will not be because the politicians think TV debates are good for democracy but because they think they will be good for them.This should not be such a surprise.
We all know the stories about how the youthful, dynamic JFK defeated the unshaven Richard Nixon in the 1960 television debates. What is less well known is that there were no further debates until the 1976 Presidential contest between Gerald Ford and Jimmy Carter.
In that election both candidates feared they were not well known to the public - Ford had become President after both Nixon and his deputy had resigned; Carter was a little-known figure from the South - and so gambled that the extra exposure from televised debates would help them.
Only after that fluke did the debates become an integral part of US Presidential elections.
So don't bank on there being televised leader debates at the next general election. And if I were David Cameron I would take some convincing that having those debates would be to my advantage.