President Biden dropping out could force an open convention at the DNC. Here’s what that means New York Post When is the DNC? Here’s what to know about 2024 convention after Biden drops out of race USA TODAYUntil 1968, presidential candidates were picked by party conventions – a process revived by Biden’s withdrawal from race The ConversationWhen is the DNC 2024? Who will replace Joe Biden as Democratic National Convention nears The News Journal