Germans are going to the polls on Sunday for national elections. Opinion polls suggest the outcome will be a new chancellor and, likely, a new governing coalition.

An economic slump, an immigration crisis and the lifting of a security blanket provided for decades by the U.S. are issues on the minds of German voters. The far-right AfD is polling in second place.

Germany's mainstream political parties lost support while the far-right AfD gained ground in one of the last polls published before the election on Sunday, pointing to likely tricky coalition building that could drag on for months.