About: Blanket primary

The blanket primary is a system used for selecting political party candidates in a primary election, used in Argentina and historically in the United States. In a blanket primary, voters may pick one candidate for each office without regard to party lines; for instance, a voter might select a Democratic candidate for governor and a Republican candidate for senator. In a traditional blanket primary the candidates with the highest number of votes for each office in each party advance to the general election, as the respective party's nominee. Blanket primaries differ from open primaries – in open primaries voters may pick candidates regardless of their own party registration, but may only choose among candidates from a single party of the voter's choice. A blanket primary gives registered vo