By Iain MACWHIRTER
The prime minister has always been slippery, but sudden policy changes this early presage trouble.
A Blairite, a Brownite and a Corbynite walk into a bar. The barman says, 'What are you having, Andy?'"
OK-it's an old joke dating from Prime Minister Andy Burnham's past (failed) Labour leadership campaigns. He has long been accused of telling people what they want to hear, of being a political chameleon.