Complex sentence: It was through this lens that he viewed the 1932 founding of the Co-operative Commonwealth Federation (CCF); though many UFA members supported this new party, which saw itself as a partnership between farmers and labourers, Brownlee considered it dangerously socialist.
Split into simpler sentences: It was through this lens that he had viewed the 1932 founding of the Co-operative Commonwealth Federation (CCF). Though many UFA members supported this new party, which saw itself as a partnership between farmers and labourers, Brownlee considered it dangerously socialist.