Note that the last successful Democratic ticket had two southerners.It will not work for them any other way
. . . and after x42 you wouldn't think it would work that way again, either. But it nearly did.
My preference, for the sake of my blood pressure is that you never elect a Democrat again. I was merely pointing out that nominating a northern liberal to the top job is a good way of achieving that. ;)
Regards, Ivan