Unverified50% confidenceFactExact time
美国初选制度（Primary Election）自20世纪初进步主义运动时期兴起，旨在打破政党机器对候选人提名的垄断，将提名权直接还给选民
1
Sources
50%
Confidence
Long-term
Relevance
7/12/2026
First Seen
Sources
Related Claims
Unverified佐治亚州的决选制度起源于1960年代南方各州的投票立法，最初设计目的在于分散少数族裔选票的影响力60% similarUnverifiedThe degree of political polarization in the United States, as measured by the congressional party-line voting cohesion index, has reached a historical peak since 1879.52% similarUnverified1968年罗伯特·肯尼迪遇刺后引发了民主党提名之争50% similarUnverified美国民主党的'超级代表'制度（superdelegates）最初有类似紧急授权功能50% similar
Cite This Claim
Stable URI
https://kongchang.com/claim/490978API
curl https://kongchang.com/api/v1/knowledge/claims/490978MCP
get_claim(id=490978)