David Cameron's true weakness has just been exposed.

If you're the Prime Minister and you circulate a speech to the press, you would have thought that everything within that speech you would strongly believe in and support. But that isn't the way Cameroons work.

Instead, they were forced into an embarrassing u-turn, dropping from David Cameron's line at the Conservative Conference about urging people to pay off their credit cards. 

This line would of course likely rile those who are finding it hard to make ends meet already due to the current economic situation, as well as being economically unsound. The Institute for Public Policy Research pointed out that if everyone did suddenly rush to pay off credit card debts, the economy would contract in a sudden and negative manner.

This is telling. Such out of touch and economically unsound advice made it into what was to be the final draft of a keynote speech that all of Cameron's army of advisers and speechwriters approved. It is extremely worrying that the man who is trying to present himself as the person who is fit to turnaround the British economy doesn't have the knowledge to not make such statements, or indeed the principle to stand by such beliefs if they are controversial and therefore challenged. A lack of ideological backbone is David Cameron's biggest weakness.