Complex sentence: In 2003, he moved to provincial politics under the Parti Québécois and was elected in Mercier riding on April 14 and became party spokesman on international relations and sits at the Parliamentary Assembly of "la Francophonie".
Split into simpler sentences: In 2003, he moved to provincial politics under the Parti Québécois and was elected in the riding of Mercier on April 14. Turp became the party spokesman on international relations and sat on the Parliamentary Assembly of "la Francophonie".