Polls · 2028 presidential election, national
Harvard / Harris , 31 May 2026
Harvard / Harris has JD Vance ahead of Marco Rubio by 24 points in 2028 presidential election, national, 45% to 21%. Since its previous poll (26 March 2026): Marco Rubio +4 (17 → 21), JD Vance +3 (42 → 45), Donald Trump Jr. +1 (20 → 21).
| Race | 2028 presidential election, national |
|---|---|
| Fieldwork | 29 May 2026 – 31 May 2026 |
| Stage | primary R |
| Sample | 1,725 (registered voters) |
| Method | – |
| Release | release |
| In our average | No: a primary, another matchup, an older poll of the same pollster, or older than the window |
Main
 JD Vance R |
45 | |
 Marco Rubio R |
21 | |
 Donald Trump Jr. R |
21 | |
| Other | 12 |
Against the other polls
Against the median of the 5 other polls of this race taken within a week of it: JD Vance 45% against 36%; Donald Trump Jr. 21% against 14.5%.
Harvard / Harris's previous poll of this race, 26 March 2026 →
Photo credits
- Donald Trump Jr.: Photo: Gage Skidmore from Surprise, AZ, United States of America, CC BY-SA 2.0, via Wikimedia Commons (https://commons.wikimedia.org/wiki/File:Donald_Trump,_Jr._(53808883476)_(cropped).jpg)
- JD Vance: Photo: Emily J. Higgins, Public domain, via Wikimedia Commons (https://commons.wikimedia.org/wiki/File:March_2026_Official_Vice_Presidential_Portrait_of_JD_Vance.jpg)
- Marco Rubio: Photo: U.S. Department of State, Public domain, via Wikimedia Commons (https://commons.wikimedia.org/wiki/File:Official_portrait_of_Secretary_Marco_Rubio.jpg)