Moroccan-born citizens who have acquired Spanish nationality are among the strongest supporters of left-wing political parties in Spain, according to a new survey published by Spanish polling and public opinion firm Opina 360, highlighting the growing electoral influence of naturalised immigrants ahead of the country's next general election.
The survey found that voters of African origin are the most inclined to back left-wing parties, with 51.9 percent favouring the left compared with just 15.7 percent supporting right-wing formations. Within this group, Spanish citizens born in Morocco stand out as one of the most solid electoral bases for the left, showing a gap of more than 38 percentage points in favour of progressive parties.
The findings suggest that Moroccan-born voters are particularly supportive of Spain's governing left, led by the Spanish Socialist Workers' Party (PSOE), which continues to attract significantly higher support among naturalised citizens than among native-born Spaniards.
The survey also revealed sharp differences among Spain's naturalised communities. While Moroccan-born and other African-origin voters overwhelmingly lean to the left, naturalised citizens from countries such as Venezuela display the opposite trend, strongly favouring conservative parties.
Overall, voting intentions among naturalised Spaniards show a slight advantage for the left, with 35.1 percent supporting parties such as the PSOE, Sumar and Podemos, compared with 28.9 percent backing the right, represented by the People's Party (PP), Vox and other conservative groups.
The poll further noted that nearly one in four naturalised voters remains undecided, a considerably higher proportion than among native Spaniards, suggesting that immigrant-origin communities could play an increasingly decisive role in future elections.
The growing demographic weight of naturalised citizens has already altered Spain's electoral landscape. Their share of eligible voters has risen from 5.3 percent in the 2015 general election to 7.2 percent in the most recent vote, representing more than 2.54 million registered voters.
The figures underscore the rising political significance of Spain's Moroccan-born community, which has become one of the country's most influential immigrant-origin electorates and a key constituency for left-wing parties ahead of the next national ballot.
