More than 50 lawmakers from David Cameron's Conservative Party are to join a campaign backing Britain's exit from the European Union unless the British prime minister achieves radical changes in the bloc, according to the Sunday Telegraph newspaper.
The lawmakers will be part of a new group called Conservatives for Britain (CfB), which will support Cameron's bid for reform while urging an end to EU membership unless significant changes are achieved, the paper said.
Cameron is attempting to persuade European leaders to back U.K. demands for reform before holding an in-out referendum on Britain's EU membership. He has promised the vote by the end of 2017.