This works out best for Seaborn. Had Hunter resigned, Seaborn would have had to pick a new Vice President now. That would be subject to Senate confirmation. With the Republicans in control, they could do what they did to Bartlett in 2003. They could stop him from picking a strong pick that they are afraid to run against in 2026. He can name a new running mate at the DNC and that is not subject to Senate confirmation.