Andrew Marr has revealed in today's Mail that he has an injunction on his extra-marital affair with another journalist. He told the paper:

"I did not come into journalism to go around gagging journalists."

As Private Eye editor Ian Hislop pointed out on the Today programme this morning, Marr's use of a controversial legal tool to gag his fellow journalists while continuing to work as one himself has raised eyebrows all over the place.

The existence and nature of Marr's injunction has been common knowledge in Westminster for years. Has it affected his reputation as journalist, though?

In the most recent Total Politics poll to find the top 100 political journalists, Andrew Marr came third, up from sixth the previous year. Not bad - he was beaten only by BBC colleagues Nick Robinson and Laura Kuenssberg.

But if you look a bit further down at the breakdown of the voters, you see that for those inside Westminster, at least, his private life has made an impact. Marr doesn't feature in the top 10 for Labour or Tory MPs, and, perhaps most tellingly, came 29th in the results from the Lobby and the Press Gallery.

The fact that the details of Marr's affair was an open secret among journalists and politicians surely should inform the future debate about the effectiveness of injunctions as a way of protecting reputations.

See the full results of the TP poll of political journalists here

Tags: Andrew Marr, Top 100 political journalists