WATCH: Paul Goodman, Douglas Carswell MP and Lord Glasman discuss falling party membership on @BBCNewsnight

Are Douglas Carswell and Robert Halfon rebels? Hear what they have to say...

Douglas Carswell MP calls for Ken Clarke to be sacked - "We need to get ourselves a new Justice Secretary"

Douglas Carswell calls for MPs and select committees to have more power of scrutiny over public spending

Mark Field and Patrick Mercer tell Channel 4 News that mood of Tory MPs is "fragile"

Also contributing were MPs Douglas Carswell, Bernard Jenkin, Dom Raab and Mark Pritchard. An anonymous source tells Gary Gibbon, Channel 4's Political Editor, that the passage of AV would amount to "a dagger to the heart of the Conservative Party".

BBC1's Politics Show examines unhappiness on the Tory backbenches

Contributors include Graham Brady, Douglas Carswell, Chris Chope and Philip Davies.

Douglas Carswell MP calls for a referendum on whether to hand new powers to the EU

David Cameron arrives at the European Council meeting in Brussels saying a 6% rise in the EU Budget would be "unacceptable"

Tory MPs Douglas Carswell, Sir Patrick Cormack and Richard Shepherd join a chorus of Commons protest at the Speaker