Berlin’s governing mayor Kai Wegner faces mounting pressure within his own party as the CDU prepares for a pivotal election convention on Sunday, 07.06.2026, amid a string of missteps that have eroded confidence even among rank-and-file members. Speaking to delegates in the run-up to the assembly, Wegner insisted the CDU remains “the only stable force at the centre” of Berlin’s fractured political landscape, yet internal critics argue his leadership has been marked by avoidable errors and a lack of strategic clarity.
The convention comes after a week in which Wegner’s administration was forced to acknowledge a series of blunders, from botched public communications to logistical failures in key service areas. One senior CDU figure, who requested anonymity, told reporters that “even loyal members are asking whether the mayor still has the political instinct to lead.” The pressure intensified when the party’s Berlin branch postponed a planned vote on its election manifesto, a move interpreted as a sign of disarray within the leadership team.
Publicly, Wegner has sought to project confidence. At Saturday’s open-day event at Berlin’s Rotes Rathaus, which drew roughly 7,000 visitors, he told crowds that “our democracy lives through dialogue,” positioning himself as a mayor accessible to citizens. Yet the optics of the gathering—designed to showcase transparency—were overshadowed by the internal turmoil, with several CDU councillors declining invitations to speak.
The convention will test whether Wegner can reclaim the initiative. Party strategists have drafted a more combative tone for the election campaign, emphasising stability and competence in contrast to the perceived chaos of rival parties. “We are the only force that can deliver steady governance,” Wegner told delegates in a closed session on Friday, according to a participant who shared excerpts with the *Tagesspiegel* .
Yet the CDU’s national standing remains fragile. Polls show the party losing ground to the far-right AfD, whose support has surged by more than 500% in some regional surveys, while the SPD continues to haemorrhage support in traditional strongholds such as the Saarland . Analysts warn that Wegner’s travails in Berlin risk reinforcing a broader narrative of CDU drift, particularly as regional leaders such as Bavaria’s Markus Söder face internal rebellions of their own .
For now, Wegner’s survival hinges on the convention’s outcome. If delegates rally behind him, the CDU may yet present a united front ahead of Berlin’s autumn vote. If not, the party risks entering the campaign season weakened and divided, with consequences that could ripple across Germany’s political map.