Complex sentence: Before joining the Meighen Institute he was the executive director of the Institute for Canadian Values (ICV), and before that he was director of Government Relations and Diplomatic Affairs for B'nai B'rith Canada.
Split into simpler sentences: Before joining the Meighen Institute he was the executive director of the Institute for Canadian Values (ICV). Before that he was director of Government Relations and Diplomatic Affairs for B'nai B'rith Canada.