COMMENT: Simon Bridges is hopelessly exposed.
Speaker Trevor Mallard has let him down badly, and for that matter let himself down as well.
Calling the inquiry into the expenses leaks was the right thing to do. His explanation for calling the inquiry was the right thing to say: "It is vital we have faith in the system" and leaks like that bring the neutrality of the process into question.
Which I guess is Mallard's rational for calling it quits. As he says, the leaker is within National, or odds on it is. Therefore it's, to a degree, beyond his jurisdiction now.
That, although technically correct, or if not technically correct at least partially correct, is also conveniently cute. And leaves me with the sense he's playing less Speaker and more Labour Party MP.
But it doesn't solve Bridges' problem - and Bridges' problem is it looks like he's got trouble in the ranks. And until we find out who it is, it's open to speculation, and rumour, and innuendo.