I rather suspect - if he could choose his words again - David Cameron would not have called those who oppose airstrikes in Syria "terrorist sympathisers".
The remarks were made last night when the Prime Minister addressed Conservative backbenchers in a Commons committee room.
As I write, 12 MPs have raised it during interventions to Mr Cameron's speech - I suspect there will have been more by the time you read this.
Labour leader Jeremy Corbyn
Former First Minister of Scotland Alex Salmond
Labour MP Caroline Flint
SNP MPs John Nicholson and Tasmin Ahmed-Sheikh
Labour MP Gisela Stuart
Labour MP Emily Thornberry
Labour MP John Woodcock
Labour MP John Mann
Lib Dem MP Tom Brake
He has associated himself with the 'motherly advice' of Gisela Stuart MP who urged him to withdraw them.
He has said he 'respects' all sides of the argument - but he hasn't apologised.
And he must now be wishing he hadn't said it in the first place.