“The Biden campaign said it had $240 million in cash on hand earlier this month, compared to former President Donald Trump’s $331 million. Campaign finance rules put some limits on what Biden can do with that money now that he’s no longer running for president.
The money isn’t just in limbo, however. Though it’s not yet completely certain whether Harris will become the nominee — she’d need Biden’s delegates at the Democratic National Convention to assume the candidacy, though his endorsement certainly puts her ahead of any possible competition — she could access Biden’s funds more easily than another Democrat. And the campaign pot only seems to be growing: Major Democratic donors, some of whom had paused their contributions after Biden’s disastrous debate performance last month due to concerns about his candidacy, reportedly reopened their wallets after Biden’s announcement Sunday.
Biden and Harris already share funds in a campaign committee under campaign finance laws that allow the president and vice president to run together as one ticket, said Saurav Ghosh, the Campaign Legal Center’s director of federal campaign finance reform. If she were to remain on the ticket as the presidential nominee, “the new ticket would maintain access to all the funds in the campaign committee,” Ghosh added.
That would make Harris’s transition to the top of the ticket seamless — at least when it comes to the money.”
https://www.vox.com/joe-biden/361991/361991biden-campaign-funds-after-drops-out