Andy Burnham’s back in Westminster after the Makerfield by-election. He’ll soon be Prime Minister. Which Andy turns up remains to be seen. And that, in part, will determine how much of a honeymoon he gets. If he guns for the privatised utilities and invests in council housing and public transport as he should, the establishment will target him. If he sits on the fence over Gaza, Palestine Action, or the EU, his coalition of voters will start to break apart. He’s one of the best communicators in politics – he can seem to offer everyone a little bit of hope. But…