Bujor represented his university in the Senate from 1914, the only independent in that chamber. In July 1914, just after the Sarajevo assassination and during the drive to war, he was selected on Toma Stelian's senatorial panel, which proposed reforms to the 1866 constitution. The period coincided with Romania's neutrality in World War I, with Bujor, by then a contributor to Petre P. Carp's "Moldova" newspaper, involving himself in passionate debates at the university. Alongside his former Poporanist mentor, Stere, he supported Romania's collaboration with the Central Powers, and preferred war against the Russian Empire. While sometimes credited as the author of anti-war Marxist brochures, these were actually written by a namesake, Mihail Gheorghiu Bujor.