Bergery had thought that the Common Front would fill a much-demanded empty niche in French politics: a centre-left progressive party that was explicitly committed to opposing fascism and defending parliamentary institutions, while also addressing financial and economic issues through state intervention, and formally allying with the Socialist Party to do so.
Troisième Voie had begun as a reflection circle linked with Esprit, a progressive Catholic journal concerned with discovering a solution to the economic crisis, via a 'third way' between socialism and laissez-faire liberalism.
Georges Izard, a Catholic intellectual and former ministerial undersecretary, disagreed with the prevailing tendency within Esprit to pursue this third way through a modernised social-Catholicism.
By mid-1935 all of the three major left-wing parties had converged onto an agreement on the need to cooperate on a programme of anti-fascism, state-intervention and the defence of liberal parliamentary institutions.
Meanwhile, under the Léon Blum government (1936–37), Bergery grew increasingly critical of the Soviet Union and the French Communist Party.
He distanced himself from the rest of the Popular Front, and increasingly adopted a tone of 'national revolution' that converged in some aspects with the very same fascist right that he had originally set out to oppose.