Tory backbencher launches into Cameron.

If you thought it could get any worse it just has.

A leading Tory backbencher last night launched a devastating attack on the Prime Minister.

Northamptonshire South MP Brian Binley says the PM has "failed consistently to chime with the natural instincts of Tory supporters" and has left the party in complete and utter "chaos".

In an open letter to today's media the 1922 Committee member says that "the chaos is harming our party's reputation with our voters."

On the same day that an opinion poll showed that all the credit the party gained from the Autumn Statement has now gone after a weekend of infighting the 70 year old says - "Its not just the standing of the leadership which is imperilled through this approach, but our entire political credibility."