Probably a good idea considering things.
That is a rational thought so the primitives could never imagine such.
It's a worry, a concern, we on this side don't have.
The broad general public has a pretty good idea of who and what the governor of Indiana is, and how competent and ethical he is, and so if--God forbid--a deranged Democrat, liberal, or primitive does something really stupid to Donald Trump, we're still covered.
But if Messalina Agrippina has some sort of serious health condition that might render her helpless or even not living, that means a guy nobody knows anything about will step into her bra--er, shoes.
It worked out okay in April 1945, when a then-unknown succeeded Franklin Roosevelt--America dodged the bullet that it wasn't Henry Wallace--but I doubt Kaine is another Truman-quality sort of person.