Complex sentence: Although the new party was dominated by former Nationalists, Latham agreed to become Deputy Leader of the Opposition under Lyons, as it was believed having a former Labor man at the helm would present an image of national unity in the face of the economic crisis.
Split into simpler sentences: Although the new party was dominated by former Nationalists, Latham agreed to become Deputy Leader of the Opposition under Lyons. It was believed having a former Labor man at the helm would present an image of national unity in the face of the economic crisis.