The first quarter of 2018 ended with a three-way tie for first place in Spanish politics, with Podemos lagging fourth in all 25 polls published during the first three months of the year.

April's first poll (Sociométrica in El Español, on Sunday), along with the last one of March (Sigma Dos in El Mundo, on Saturday), was no different, although over the past three weeks or so Ciudadanos has begun to untangle itself from the survey spaghetti.

As Albert Rivera's party inches its way towards the 30% mark, both the governing Popular Party (PP) and the Spanish Socialist Party (PSOE) continue...