Spain's Socialist prime minister says he will defend the constitution and democracy against fear following a major setback to his party in a regional election that marked an awakening of the far-right. Pedro Sanchez tweeted Monday that ``my government will continue working on a regenerating and pro-European project for Spain.'' The anti-migrant, euroskeptic Vox party won 12 seats in the 109-member regional parliament of Andalusia, in southern Spain on Sunday. Sanchez added that the result will ``strengthen our pledge to defend the Constitution and Democracy against fear.'' The Socialists won an election marked by a low participation, but face losing the regional government for the first time in 36 years if the center-right, conservative and extreme right opposition strike a deal to assemble a 59-seat majority.