Immediately prior to the 1970 parliamentary election in the Republic of South Africa, 462 white voters in Cape Town were questioned about their demographic backgrounds, voting intentions, and political attitudes. The study showed that ethnicity is the major determinant of party vote: Afrikaners vote for the National Party, the English-speaking for the United Party. SES-related factors predict party identification only insofar as they covary with ethnicity. While a liberalization of political attitudes with rising SES can be observed, this has no bearing on electoral behavior. Party vote is not related to ideological or issue orientations, but is related to the intensity of the voter's identification with his own ethnic group and with white South Africans in general. Voters tend to react positively or negatively to the NP, with the UP serving chiefly as a vehicle for protest votes against the government. The slight drop in NP support in 1970 was due to a key group of abstainers who—while basically Nat supporters—were more liberal than those who said they would vote for the NP. It is “Ambiguous Afrikaners” (those who are changing to an “English” identity), and only some of those, who are defecting completely from their traditional political allegiance. They represent the one sign of potential change in South Africa's uniquely stable political system.
