One bunch they will have to deal with. The Bernie klan.
Biden gets thrown aside and if Commie Komrade Bernie doesnt get it, it will be hell to pay.
I bet it’s just standard contingency rules that they have, and not specifically put in place because of Joe Biden.
I’m sure some older folks here remember in 1972, when Thomas Eagleton was replaced as the vice-presidential nominee by Sargent Shriver. That event happened after the convention and it was done by a vote of Democratic National Committee members,and not a vote of all convention delegates.