So then the question becomes what "apparently successful" means. After the 2000 mess, @ToddZywicki argued, pretty convincingly, that an apparently successful candidate is one with a majority of electoral votes certified by state secretaries of state. https://ssrn.com/abstract=262338  (1/2) https://twitter.com/steve_vladeck/status/1324776181372198917

Presumably, it could come sooner than that, if the outcomes were crystal clear but certification was lagging because of a need to count every last vote. In any event, he and others agree that a concession (or not) irrelevant under the Act. #transition @kateashaw1

Zywicki also argued that ongoing litigation is beside the point. Heart of the textual argument is that "apparently" does real work in the sentence, against a background concern that transitions need all the time they can get.