Politze successor: Wiard Siebels is the new SPD parliamentary group leader
The 48-year-old had most recently led the office on a provisional basis. 37 of the 43 members present voted for him.
Der 48-Jährige hatte das Amt zuletzt kommissarisch geführt. 37 der 43 anwesenden Mitglieder stimmten für ihn.