OPINION - Starmer's investment summit is a success, but can't resolve the unanswered questions

It is never simply the messaging. Sure, political communications is a vital tool in any government's arsenal. There is little point doing good things if a grateful public does not know about it. But more often than not, it is first and foremost about the policy and the principal. And this, more than anything else, is where the new Labour government is struggling most.