Just days ago, Maximilian Krah made headlines when he left the Christian Democratic Union party led by Merkel, blaming her failures in the refugee crisis for his departure.
Krah, who was a member of the CDU for ten years, also launched a website urging other members to follow his lead.
The lawyer said Merkel had let down Germans by failing to consider their concerns and best interests while handling the influx of refugees.
Krah claimed that Merkel had fixated on "some" opinions, while "having lost contact with real world problems."
He added: "People are upset with the policy that is not looking to the population, to the interests of the people in the country."