As immigration dominates the public debate in Spain, the PP-Vox right-wing bloc has crossed an important threshold in the polls for the first time in three years, in turn suggesting the possible outcome of next year's general election.

A points-based visa system, 'national priority' for Spaniards in housing and welfare, tougher citizenship rules? These are just some of the possible outcomes of a PP-Vox…

A new poll is only the latest sign of growing fractures across Europe as it struggles to deal with rising numbers of migrants