2004 New Jersey Democratic presidential primary
The 2004 New Jersey Democratic presidential primary was held on June 8, 2004, and featured the two candidates who were still campaigning for the nomination: presumptive nominee Senator John Kerry of Massachusetts and congressman Dennis Kucinich of Ohio. Kerry won a landslide victory at 92% to Kucinich's 4%.
Polling
| Poll source | Date administered | Sample size | Margin of error | |||||||||||||||
| Quinnipiac | December 3–9, 2002 | 934 RV | ±3.2% | – | 22% | 5% | 0% | 2% | 7% | 37% | – | 14% | – | 5% | – | – | – | 6% |
| Quinnipiac | January 22–27, 2003 | 294 RV | ±5.7% | – | – | – | 4% | 7% | 9% | – | – | 18% | – | 32% | – | 12% | – | 17% |
| Quinnipiac | June 11–16, 2003 | 272 RV | ±5.9% | – | 48% | – | 3% | 3% | 7% | – | 2% | 11% | 1% | 14% | 1% | 8% | – | 7% |
| Quinnipiac | June 11–16, 2003 | 272 RV | ±5.9% | – | – | – | 6% | 3% | 13% | – | 3% | 15% | 0% | 26% | 5% | 8% | – | 21% |
| Quinnipiac | September 18–22, 2003 | 322 RV | ±5.5% | 8% | 41% | – | 9% | 3% | 9% | – | 0% | 8% | 1% | 10% | 1% | 3% | – | 6% |
| Quinnipiac | September 18–22, 2003 | 322 RV | ±5.5% | 16% | – | – | 12% | 4% | 13% | – | 1% | 14% | 0% | 17% | 2% | 9% | – | 13% |
| Quinnipiac | November 6–10, 2003 | 351 RV | ±5.2% | 9% | 42% | – | 9% | 3% | 5% | – | – | 9% | 0% | 10% | 1% | 2% | – | 11% |
| Quinnipiac | November 6–10, 2003 | 351 RV | ±5.2% | 11% | – | – | 16% | 2% | 9% | – | – | 15% | 0% | 16% | 6% | 5% | – | 20% |