Overview
- Ken Griffin said he would be predisposed to back Marco Rubio in a 2028 GOP primary during a Wednesday interview at the Allen & Company Sun Valley conference.
- Griffin is one of the party's biggest donors, having given more than $100 million in 2024, and reporters say he did not spell out concrete plans for how he would help Rubio.
- Marco Rubio has publicly said he would defer to Vice President JD Vance if Vance runs for the 2028 nomination, so Griffin's remark does not immediately change the likely field.
- The exchange highlights a growing split between establishment figures who favor Rubio and anti-establishment forces rallying around Vance, and it follows reporting that Griffin urged Trump not to pick Vance in 2024.
- If Griffin and other wealthy donors move money or organizing behind Rubio it could reshape early 2028 positioning by shifting resources and signaling who party elites prefer, and a Citadel spokesperson declined to comment on Griffin's remark.