It was formed after the 2019 Bremen state election by the Social Democratic Party (SPD), Alliance 90/The Greens (GRÜNE), and The Left (LINKE), and was the first government in a former West German state to include the Left party.

The opposition CDU narrowly surpassed the SPD to become the largest party for the first time in the state's history.

[1] After holding consultations with various parties, the Greens announced on 5 June that they would seek a coalition with the SPD and Left.

[3] On the same day, Carsten Sieling announced that, due to the losses suffered by the SPD in the election, he would not stand for re-election as Mayor.

[4] On 6 July, the SPD state congress nominated Andreas Bovenschulte, who had been elected as parliamentary group leader the previous week, as Sieling's successor with 140 votes out of 146.