U.S. Presidential Primaries History
The complete record of presidential primaries from 1976 to today: winners, vote totals, and margins for every state and both parties. Each entry lists its official source, so you can trace any number back to the state election board or FEC record it came from.
This archive powers the Presidential Primary Results Explorer, where you can compare states head to head. For how primary wins translate into nominations, see Path to Nomination.
Follow how candidates move from primaries to the nomination.
Search primary strength, general-election performance, convention ballots, and contested nomination history in one clean explorer.
Why this is worth unlocking
- Compare primary and general-election strength
- Find contested or brokered conventions
- Search nominees, states, parties, and locations
- Study how nomination fights shaped outcomes
Primary Bridge
Compare nominee primary performance with general-election state performance.
The Vote
Connect nominations with tickets, popular vote, and Electoral College outcomes.
Open The Vote