Complex sentence: He is a personal friend and political ally of Liberal-turned-Conservative Senator Anne Cools, and has worked with her to reform Canada's divorce laws in recent years: both Cools and Gallaway have sought to ensure greater custody rights for fathers.
Split into simpler sentences: He is a personal friend and political ally of Liberal-turned-Conservative Senator Anne Cools, and has worked with her on attempting to reform Canada's divorce laws in recent years. Both Cools and Gallaway have sought to ensure greater custody rights for fathers.