He was upset over an allegation the Minister supposedly made about him during the session, implicating him in an affair over a false telegram.

It is during this time that he takes on him to defend the settlers right to cut trees and provide information to the Commission de la colonisation of 1904.

In 1905, he began a campaign in favour of public compulsory education (it would become law under Premier Adélard Godbout in the 1940s).

The November 26, 1915, Sir Sam Hughes, Minister of Militia and Defence, offered Asselin the honorary rank of Colonel, which entailed raising a battalion for the Canadian Expeditionary Force.

Asselin recruited men to form the 163rd (Canadien-Francais) Battalion, CEF, known as the "Poils-aux-pattes", made up of French-Canadian volunteers, and placed them under the command of Captain Henri Desrosiers, accepting instead the rank of Major.

From 25 October 1918 until the rest of the war, Major Asselin was posted to the 87th Battalion (Canadian Grenadier Guards).

[4] In 1930, he became the editor-in-chief of Le Canada and founded, five years later, his own newspapers, named L'Ordre and La Renaissance.