2004 United States Senate election in Florida
The 2004 United States Senate election in Florida took place on November 2, 2004 alongside other elections to the United States Senate in other states as well as elections to the United States House of Representatives and various state and local elections. Incumbent Democratic U.S. Senator Bob Graham decided to retire instead of seeking a fourth term. Graham made an unsuccessful bid for the Democratic presidential nomination. The primary elections were held on August 31, 2004. Republican Mel Martínez won the open seat with 49.4% of the vote to Democratic nominee Betty Castor's 48.3%. With a margin of 1.1%, this election was the closest race of the 2004 Senate election cycle.
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![]() County results
Martinez: 40–50% 50–60% 60–70% 70–80% Castor: 40-50% 50–60% 60–70% 70–80% | |||||||||||||||||
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| Elections in Florida |
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Democratic primary
Candidates
- Betty Castor, former President of the University of South Florida, former Education Commissioner of Florida, and former State Senator
- Peter Deutsch, U.S. Representative from Broward County
- Bernard Klein, businessman
- Alex Penelas, Mayor of Miami-Dade County
Results

| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Democratic | Betty Castor | 669,346 | 58.1% | |
| Democratic | Peter Deutsch | 321,922 | 27.9% | |
| Democratic | Alex Penelas | 115,898 | 10.1% | |
| Democratic | Bernard E. Klein | 45,347 | 3.9% | |
| Total votes | 1,152,513 | 100.0% | ||
Republican primary
Martínez was supported by the Bush Administration.
Candidates
- Johnnie Byrd, State Representative from Plant City
- Doug Gallagher, businessman
- Larry Klayman, attorney
- William Kogut
- Sonya March
- Mel Martínez, former Secretary of Housing and Urban Development and candidate for Lieutenant Governor in 1994
- Bill McCollum, former U.S. Representative and candidate for U.S. Senate in 2000
- Karen Saull
Results

| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Republican | Mel Martínez | 522,994 | 44.9% | |
| Republican | Bill McCollum | 360,474 | 30.9% | |
| Republican | Doug Gallagher | 158,360 | 13.6% | |
| Republican | Johnnie Byrd | 68,982 | 5.9% | |
| Republican | Karen Saull | 20,365 | 1.8% | |
| Republican | Sonya March | 17,804 | 1.5% | |
| Republican | Larry Klayman | 13,257 | 1.1% | |
| Republican | William Billy Kogut | 3,695 | 0.3% | |
| Total votes | 1,165,931 | 100.0% | ||
General election
Candidates
- Dennis Bradley (V), activist
- Betty Castor (D), former State Senator
- Mel Martínez (R), Secretary of Housing and Urban Development
Predictions
| Source | Ranking | As of |
|---|---|---|
| Sabato's Crystal Ball[3] | Lean R (flip) | November 1, 2004 |
Polling
- Graphical summary
Results
See alsoReferences
External links
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