 The former mayor (Oberbürgermeister), Dieter Salomon (in office 2002–2018), was the first member of Bündnis 90/Die Grünen to hold such an office in a city with more than 100,000 inhabitants.In May 2018, Martin Horn, an independent candidate formerly associated with the SPD and supported by the SPD and FDP, became mayor of Freiburg, having received 34.7% in the first round of voting and 44.2% in the second.During his post-election party, he was punched in the face by a local man with known psychiatric problems.