Joe Biden is currently running as the presidental domination for the democratic party in the 2020 US presidental elections. Joe Biden served under President Obama for two terms. Is there any reason in law that stops Obama (hypothetically) from running as Biden's running mate? (swapping places)

NOTE - As far as I'm aware Obama has no interest in becoming a vice president and I am speaking purely from a hypothetically.

  • Deleting my downvoted answer, but I think Snopes.com is correct that , "there is no answer: this is an interpretive legal issue that, should it ever arise, would have to be decided by the judicial branch of the U.S. government." – Brian Z Jun 26 '20 at 15:18