Tory Rebels Threaten to Force Cameron's Hand.

These are tense times for Tory MPs on the back of UKIP's May Day uprising.

And it seems as though at least two of them are starting to act.

David Davis and Bernard Jenkin are both calling for David Cameron to hold the EU in or out referendum before the General Election and tbg understands that at least 30 others thought to include new boys Karl McCartney, Martin Vickers and Henry Smith are ready to back a Bill to force a vote.

Bernard Jenkin tells tbg that a referendum now would give the PM more muscle to claw back powers from Brussels and David Davis thinks it will put the PM more in touch with the people rather than just fellow Etonians.