Germans in Bavaria are voting in regional elections on Sunday.
They come just a week before the whole of Germany votes to elect a new parliament.
The current head of government in Bavaria is Horst Seehofer of the CSU, affiliated to Chancellor Merkel’s conservative CDU party. Bavaria has been governed by the conservatives for decades and the latest polls suggest they might get back their absolute majority.
Seehofer’s challenger is the Mayor of Munich, Christian Ude, from the centre-left SPD. Polls predict the SDP getting 18 to 20 percent.
The results from Munich will be closely watched by the rest of the country.
Chancellor Merkel’s conservatives will hope a big election win in Bavaria can add momentum to the German leader’s quest for a third term on 22 September.