Alternative for Germany appears to be headed for the strongest showing by a far-right party since World War II in Sunday’s national election and is fielding its first candidate to lead the country.

The margin of error for individual polls is estimated from the poll’s sample size and the number of eligible German voters reported by the German Federal Statistical Office.

Polls are open across Germany as the world’s third largest economy chooses a new leader to guide it through an era of febrile immigration debates and souring relations with Washington.