In 1926, Van Acker was elected to a position in Bruges' city council and, in 1927, became a POB–BWP member of the Chamber of Representatives aged 29.
1926'da Van Acker, Bruges şehir meclisinde bir göreve seçildi ve 1927'de, 29 yaşında Temsilciler Meclisi'nde POB-BWP'den üye seçildi.