瑞典民主黨
In the 2010 general election, the Sweden Democrats for the first time entered the Riksdag with 5.70% of the votes and Söder, placed second on the party's national ballot, was elected as a Member of the Riksdag (SD) along with 19 other Sweden Democrats politicians. On 24 September 2010, he was elected as group leader of the Sweden Democrats in the Riksdag.