A voter casts his ballot during regional elections in Brandenburg

Potsdam (Germany) (AFP) - Germany’s far-right AfD was hoping to win a tight race Sunday against Chancellor Olaf Scholz’s Social Democrats in a regional election in the state of Brandenburg that could have repercussions for the government in Berlin.

The anti-immigration Alternative for Germany has long railed against Scholz’s unpopular coalition government, which faces national elections in a year.

In the state election in Brandenburg in former communist East Germany, the AfD aims to replicate the strong gains it made in the east three weeks ago, when it won a parliamentary vote in Thuringia and came a close second in Saxony.

A victory in Brandenburg, which surrounds the capital Berlin, would deliver another setback to Scholz’s Social Democrats (SPD), the centre-left party that has ruled the state since Germany’s reunification in 1990.

The latest surveys give the AfD an edge, predicting it will win with 27-29 percent of the vote, even as the SPD has recently narrowed the gap and polled at 25-26 percent.

“If the SPD does not come out on top in the elections, it will be a very hard blow for the Social Democrats and Scholz,” said Benjamin Hoehne, a political scientist at the Technical University of Chemnitz.

Brandenburg's state premier Dietmar Woidke from the SPD, seen here casting his ballot, has vowed to resign if the AfD wins

A bruising defeat would mean “the debate about who in the SPD would be the best candidate for chancellor is likely to accelerate”, Hoehne added.

Infighting in the government has seen Scholz’s approval ratings take a dive while his defence minister, fellow Social Democrat Boris Pistorius, often tops surveys as Germany’s most popular politician.

In the long run-up to national elections in September 2025, the opposition conservatives of the CDU-CSU alliance last week selected their party leader Friedrich Merz as their top candidate.

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Around 2.2 million people aged over 16 are eligible to vote in Brandenburg. Polls will close at 1600 GMT.

The state includes wealthy towns such as Potsdam as well as thinly populated rural areas and industrial zones, one of which houses a Tesla plant.

Popular SPD state premier Dietmar Woidke has kept his distance during the campaign from his party colleague Scholz, even though the chancellor’s electoral district is Potsdam.

An AfD billboard says 'Enough!' and demands closed German borders and deportations of illegal immigrants

But Woidke, in office for over a decade, has thrown down a challenge to voters by saying he will quit if the AfD wins.

“There’s a lot at stake,” 76-year-old Vroni Berger told AFP after voting in Potsdam. “I don’t want the AfD,” she said, adding that the SPD’s Woidke “has done a lot for Brandenburg”.

Another voter, 60-year-old administrative assistant Caro Langer, said it was important to her “that we don’t just send money abroad” and “that more thought is given to the people here in the country”.

Even if the AfD wins, it is unlikely to govern because all other parties have ruled out entering into a coalition with it.

But the AfD’s rise has heaped political pressure on Scholz and his governing allies, the Greens and the liberal Free Democrats.

German far-right politician Bjoern Hoecke led the AfD to its first-ever regional election victory

The decade-old AfD has stoked and capitalised on public fears about irregular migration after a string of recent extremist attacks with suspected Islamist motives.

Germany was especially shocked by a knife rampage that killed three people and wounded eight in the western city of Solingen last month.

Police arrested a Syrian asylum-seeker who allegedly claimed allegiance to the Islamic State group and had evaded a deportation order.

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A recent survey in Brandenburg found that immigration was the top concern for many voters.

The AfD, besides protesting against migrants, Islam and multiculturalism, also questions climate change and holds pro-Russian positions on the Ukraine war.

A new populist party, the left-wing Sahra Wagenknecht Alliance, is polling at 13-14 percent in Brandenburg

This year has also seen the emergence of a second populist party, the left-wing Sahra Wagenknecht Alliance (BSW), which is polling at 13-14 percent in Brandenburg.

Hailing from former East Germany, Wagenknecht is a veteran opposition politician and frequent TV talk show guest who quit the hard-left Die Linke party to form her own movement.

She has described the BSW’s policies as “leftist-conservative” – a blend of economic policies that help workers and the poor and conservative cultural positions including on limiting immigration.

As in Thuringia and Saxony, Wagenknecht’s party could gain a potential kingmaker role after the election, complicating the task for the other parties who oppose her pro-Russia and anti-NATO stance.