Has Corbyn sold out on Trident over a shot at power?

Jeremy Corbyn's new leadership of the Labour Party has posed a bit of a conundrum to political commentators.

He has views well to the left of centre. He has a large democratic mandate. But, on many key issues, he simply doesn't agree with most of his MPs.

So, in this new bottom up, creatively democratic, straight talking world, who ultimately gets to set policy?

Does he compromise his views? Or do they?

The answer in the end this morning, was very interesting:

So, is that a grown up democrat in action? Or a man who will be seen as willing to sell out his principles for power, like so many others?