He joined Smuts' South African Party, becoming the member of the House of Assembly of South Africa for Bloemfontein South, defeating Colin Steyn of the National Party by 101 votes in the first of their three contests for this seat. His principles during his political career included loyalty to General Smuts, loyalty to the British Empire as guarantor of South African freedom, and harmony between Dutch and English South Africans. He opposed the Ossewa Brandwag organisation, which planned to take control of South Africa as soon as Britain had been crushed.