Complex sentence: Thibault was the Parliamentary Secretary to the Minister of Health from 2004-2006 under Paul Martin's leadership, as well as Minister of Fisheries and Oceans from 2002-2003 and Minister of State (Atlantic Canada Opportunities Agency) from 2001 to 2002 under Jean Chretien.
Split into simpler sentences: Thibault was the Parliamentary Secretary to the Minister of Health from 2004 to 2006 when Paul Martin was prime minister. He was Minister of Fisheries and Oceans from 2002 to 2003 and Minister of State (Atlantic Canada Opportunities Agency) from 2001 to 2002 under Jean Chretien.