In an Outremont by-election in 1942, Trudeau campaigned for the anticonscription candidate Jean Drapeau (later the Mayor of Montreal), and he was thenceforth expelled from the Officers' Training Corps for lack of discipline. After the war, Trudeau continued his studies, first taking a master's degree in political economy at Harvard University's Graduate School of Public Administration. He then studied in Paris, France in 1947 at the Institut d'Études Politiques de Paris. Finally, he enrolled for a doctorate at the London School of Economics, but did not finish his dissertation.[8]
Trudeau was interested in Marxist ideas in the 1940s and his Harvard dissertation was on the topic of Communism and Christianity.[9] At Harvard, Trudeau found himself profoundly challenged as he discovered that his "... legal training was deficient, [and] his knowledge of economics was pathetic."[10] Thanks to the great intellectual migration away from Europe's fascism, Harvard had become a major intellectual centre in which Trudeau profoundly changed.[11] Despite this, Trudeau found himself an outsider – a French Catholic living for the first time outside of Quebec in the predominantly Protestant American Harvard University.[12] This isolation deepened finally into despair,[13] and led to his decision to continue his Harvard studies abroad.[14]
In 1947, Trudeau travelled to Paris to continue his dissertation work. Over a