He called the situation “completely unacceptable.”
Party health spokesperson Janosch Dahmen emphasized the damage to political credibility.
“Anyone who advocates for rules politically should be able to explain clearly why those rules apparently do not apply to them personally,” he said.
Chancellor Friedrich Merz initially withheld comment, deferring to an upcoming executive meeting.
Spahn reaffirmed his commitment to his family, stating, “One thing is clear to me: For me, and this becomes clearer to me every hour, there is nothing more important than my family.”
On Saturday, Spahn formalized his resignation, acknowledging the conflict between private life and public duties.
“In recent days, I have come to realize that my personal happiness in starting a family with my husband and becoming a father is incompatible with my political office,” he said.
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Merz publicly supported the decision on social media, calling it “right and inevitable. Credibility is the most valuable asset in politics.”