The Greek crisis and economic recovery at home are enticing Spanish voters with moderate views back to mainstream parties, the head of a polling firm said, after it published a survey showing anti-establishment Podemos losing ground. With less than six months to the next general election, Spanish politics are highly volatile and voters' preferences can vary hugely from one poll to the next, with the emergence of new parties including Podemos making results even harder to predict. Support for the governing centre-right People's Party (PP) stood at 29.1 percent while the opposition socialist PSOE was on 25.1 percent, the GAD3 poll published on Sunday in Spanish daily ABC found.