Career
Garchery joined the French Communist Party (Parti Communiste Français (French Communist Party)) upon its foundation in 1920 and represented the Parti Communiste Français (French Communist Party) in the Chamber of Deputies from 1924 to 1928. Having been excluded from the Parti Communiste Français (French Communist Party) in 1929, he was among the founders of the Workers and Peasants Party (POP), which in 1930 merged into the Proletarian Unity Party (PUP). In 1937 the PUP merged into the SFIO. On 10 July 1940, he voted in favour of granting the Cabinet presided by Marshal Philippe Pétain authority to draw up a new constitution, thereby effectively ending the French Third Republic and establishing Vichy France.
Mostly because of this vote, Garchery was excluded from the SFIO in November 1944, along with a number of other SFIO politicians.
In 1945 he joined the newly founded Democratic Socialist Party (Social Democratic Party).
