There can be few better examples of just how much the Labour party under Gordon Brown has lost its way than this - David Cameron claiming the moral high-ground and painting himself as the man of action over MPs expenses. Cameron's MPs were just as tainted by the scandal as Brown's, yet Cameron is able to posture like this is a party political issue. Sure, only Labour MPs have been charged - but owing to the sheer number of them relative to the Tories, it was always more likely they would face charges. Plus, if memory serves (and here it does), there is also a Tory peer facing prosecution. Cameron should be avoiding this issue in the way one might avoid a pissed-off puff adder. Not using it as a club with which to beat the Labour party.

The fact that he is doing so - and doing so with impunity - speaks volumes about the wreck the Labour party has become. This is pure opportunism from Cameron - attempting to land a punch that he knows should be blocked with comparative ease. He must be amazed - and delighted - that the punch has hit home so hard.

The expenses scandal was meant to benefit no-one - the fact that it is benefitting Cameron is entirely the fault of the Labour party.