Random observations:
He is better on TV than in person. Has limited range (like Sean Hannity but not as bad). Has an energetic optimism. He is a good age to complement Trump. Understands the nastiness in 2016 was just politics. He is handsome enough to appeal to people who are moved by that, and is Latino for those who count Cubans (the ones who don’t are probably Dem voters anyway). He has been through enough campaigns to know what to expect. His replacement in the Senate should be okay. He doesn’t scare non-Trump conservatives. He is not believable on the immigration issue.
He is from the same state as Trump which complicates things. His instinctive reflexes are more Neo-Con than MAGA. His loyalty will always be a bit suspect.
Conclusion: Not the worst pick for 2024, but not a good pick for the long-term dominance of MAGA.
I look at it as Reagan picking GHWB as VP. It’s safe, will drag in the liberal sorrier than whale sh*t country club establishment trash on board with exceptions, but we are stuck with him after four years assuming the deep state and establishment doesn’t JFK Trump, which I wouldn’t put past these animals.