Ironically, there was a time, a smoke-filled room time, when selecting a presidential nominee was far less open process than selecting a vice presidential one, which was left, on many occasion, to the delegates. Now, in order to become a nominee, one must face a nationwide primary. But there's no such transparency in selecting a running-mate: basically nominee says he want that guy and it's over.
I think establishing separate primaries for President and Vice President (as we have many separate primaries for future ticket-mates on statewide level) would be a great idea.
What do you think, guys?
We do not need another set of confusing, monotonous, and expensive primaries to pick a VP nominee. The Presidential nominee has to be comfortable with the VP pick, as they have to work with them.
The VP can of course be, but need not necessarily be a U.S. Senator. Any VP can quickly learn their responsibilities as President of the Senate.
Main criteria, the VP must be capable of becoming President, regardless of their background.