Two days is a very long time in British politics. On Saturday it was being reported that Andy Burnham might block the early release of two men who killed policeman Andrew Harper. No doubt the PM was motivated in part by a petition making that demand, which now has almost 900,000 signatures. On Monday we

Downing Street said it was 'not possible' to exempt 'one or two offenders' convicted of manslaughter amid an outcry at the possibility of Jessie Cole and Albert Bowers being freed.

The Prime Minister is said to have been examining whether to exempt people who kill emergency service personnel from a controversial scheme to free up space in massively…