Haven’t heard the speech. Some quick pontifications, though, based just on the article and your comment:
1. This (concession) probably has been “in the works” for at least a week. “If we don’t get at least 2d in Florida, and you win there, I’ll throw it to you.”
2. Rudy might prefer to be Ambassador to the UN over Veep or other admin jobs. JMO; he seems strongly to prefer NYC environs to Washington.
Judy likes the shopping better in NYC.