Cameron tells fractious party to stay focused

By Tim Castle LONDON (Reuters) - Prime Minister David Cameron sought to quell talk of a leadership challenge after a run of political setbacks, telling activists in his Conservative party on Saturday to concentrate on winning the next national election in 2015. Cameron is under pressure from a growing number of party legislators and activists who have broken ranks to say they are unhappy with his policies. The economy is stagnant, heading for a possible third recession in four years, and the Labour opposition holds a 10-point lead in opinion polls. ...