Nationwide opinion polling for the United States presidential election, 2008 Support likelihood Support likelihood

| Poll_Source | Date_ | Candidate | Support | Consider | Oppose | Unsure |
|---|---|---|---|---|---|---|
| CNN/USA Today/Gallup Poll | May 20–22, 2005 | Hillary Rodham Clinton | 28% | 31% | 40% | 1% |
| CNN/USA Today/Gallup Poll | Jun 9–10, 2003 | Hillary Rodham Clinton | 20% | 33% | 45% | 2% |