The ruling SPD has just scraped by in a critical electoral test, but a closer look at the numbers show trouble for next year's elections.

After a string of bitterly disappointing elections, German Chancellor Olaf Scholz's centre-left Social Democrats (SPD) finally have something to celebrate after winning Sunday's vote in the eastern state of Brandenburg.

Brandenburg is a longstanding stronghold for the party. But it is located in Germany’s relatively impoverished east, where the anti-immigrant A f D performs far better than in the west. That made this election a test of whether the SPD could beat the populists on its home ground.