Shadow minister Ian Austin's dramatic call for an in/out referendum next year shows how party unity is fraying.
Withdrawal from the European arrest warrant would turn the UK into a haven for foreign criminals.
The idea of tabling an amendment to the Tory bill demanding a referendum before the next election is gaining currency in Labour ranks.
They punch… well, they pretty much punch their weight.
The Prime Minister's European strategy relies on an act of persuasion that he has proved himself incapable of pulling off.
Ed Miliband should hold his nerve and resist demands to make his own hasty referendum pledge.
Miliband is making a strategic mistake by aligning the party with an EU political elite intent on exerting control over all 27 members states, regardless of the wishes of each electorate.
John Mann respectfully regrets that "a bill to call a referendum on reversing NHS privatisation was not included in the Gracious Speech".
After Gove and Hammond's interventions, the Prime Minister will find it harder to sit on the fence at his press conference with Obama today.
Labour for a Referendum, which has the support of 15 MPs, aims to force Miliband to commit to holding an in/out EU referendum after the next election.