Murdoch Mackay
MacKay brought the Manitoba Liberals into an alliance with the governing Progressives in 1932 . By this time , the Liberals and Progressives of Manitoba were already co-operating at the federal level; national Liberal leader William Lyon Mackenzie King wanted the same alliance at the provincial level to prevent a Conservative victory in the next election . 
<triplet> William Lyon Mackenzie King <subj> Liberal <obj> member of political party