Polls show Spain's left-wing bloc could clinch majority

By Sarah White and Carlos Ruano MADRID (Reuters) - Spain's two main left-wing parties could come close to clinching a combined parliamentary majority, several opinion polls showed on Sunday, a week before the country votes in its second election in six months. Spain's political vacuum has yet to substantially derail an economy which is on course to grow faster than most euro zone peers this year, by 2.7 percent.