German voters are heading to the polls Sunday for a national election. The race pits the incumbent chancellor against the opposition leader, the vice chancellor and — for the first time — a leader of a far-right party.

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.

Germans are going to the polls after an intense election campaign dominated by their country's faltering economy and a succession of deadly attacks that have made migration and security a focal issue.