Offduty -
You are forgetting the 12th Amendment ... It separates votes for POTUS and VP. I think a “ticket” now means 1 vote for POTUS, 1 for VP.
Biden did not file POTUS papers at the FEC and the States - he filed VP papers ...
Check my post at 317. The underlying question at the time was there are some states that only have the top of the ticket on the ballot. Therefore, you have Obama without Biden and McCain without Palin.
Since the 12th Amendment requires electors to make a list of all votes for President and a seperate list for Vice President, could a case be made that those ballots that did not contain the names of the VP candidates be void?
It was a very narrow question/scenario we were addressing.
OK another hypothetical, you seem to know the process better than I, Biden already filed with the FEC as a Presidential candidate during the primary. The main duty of the FEC is to control campaign finance. Since the Dem ticket opted out of Federal money, how would the FEC come into play?