Osborne faces rebellion over Brexit emergency budget

By Estelle Shirbon and William Schomberg LONDON (Reuters) - Chancellor George Osborne said on Wednesday he would introduce an emergency budget if Britain voted to leave the European Union, but 57 of his own Conservative Party's lawmakers said they would block his spending cuts and tax hikes. Britons will vote in a referendum on June 23 on whether to stay in the 28-member bloc, and the ruling party is profoundly split with Osborne and Prime Minister David Cameron battling for a "Remain" vote whil