Sen. Tim Sheehy (R-MT) on Monday suggested Secretary of State Marco Rubio should be waiting in the wings to handle negotiations with Iran if Vice President JD Vance can’t get a long-term agreement with Tehran over the finish line.

Vance is in Switzerland this week with Special Envoys Steve Witkoff and Jared Kushner to meet with Iranian officials to negotiate a “road map” for a final peace deal to end the conflict in the region.