In parliamentary elections during the 1970s and 1980s between 15% and 20% of white voters voted for the liberal Progressive Party, whose main champion Helen Suzman for many years constituted the only MP consistently voting against apartheid legislation.
I parlamentære valg i halvfjerdserne og firserne stemte mellem 15% og 20% på det liberale ”Progressive Party”, hvis leder, Helen Suzman, i mange år var den eneste modstand til apartheid i parlamentet.