Voters share which party they are backing on key issues from immigration to economic stagnation amid a fractured political landscape

“I live in Germany’s oldest city, founded by the Romans over 2,000 years ago,” said Gregor, 59, from Trier, a town of about 110,000 inhabitants in the country’s affluent south-west and part of the world-renowned Moselle valley wine region. A short driving distance away from the borders of Luxembourg, Belgium, France and the Netherlands, Trier is often described as being “in the heart of Europe”.

“When I walk the dog,” Gregor said, “I see old people looking for food in rubbish bins. It hurts me. Twenty years ago, I never saw anything like this.”