evidence: President Joe Biden’s decision not to run for reelection creates a unique situation for Democrats and Democratic voters in which the person who won party primaries is no longer the party’s candidate. [...] Biden hasn’t been officially nominated and the party hasn’t submitted his name to state officials. So the new nominee wouldn’t be, in an official sense, replacing Biden. Whoever the delegates select will be the Democratic nominee and they shouldn’t have an issue taking the Democratic ballot line. [...] This story has been updated following Biden’s decision to drop out of the race and with additional details from the Democratic National Committee.