What is a blanket primary?

Answer 1

The blanket primary is a system used for selecting political party candidates in a primary election in the USA. 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. The candidates with the highest votes by party for each office advance to the general election, as the respective party's nominee. It differs from the open primary - 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.