Complex sentence: This ended his museum career and the controversy also revealed troubling insights into anti-Semitic bigotry in Canada, but nonetheless helped generate a renewed government interest in the museum, which helped lead to a new War Museum building.
Split into simpler sentences: This ended his museum career, and the controversy also had revealed troubling insights into anti-Semitic bigotry in Canada. It nonetheless helped generate a renewed government interest in the museum, which helped lead to a new War Museum building.