Complex sentence: Mettbach began his political career in the Christian Democratic Union (CDU), and in 1993, he was founding member of the Statt party, later he joined Law and Order Offensive Party, former Ronald Schill party.
Split into simpler sentences: Mettbach began his political career in the CDU, and in 1993. He was founding member of the Statt party and later joined the Law and Order Offensive Party, former Ronald Schill party.