What happens to Biden’s $91-million campaign money if he drops out?

U.S. President Joe Biden’s reelection campaign has a massive bank account that could benefit an alternative candidate if he dropped his White House bid, but campaign finance rules limit how that cash could be spent.

The 81-year-old Democrat is facing pressure to fold his campaign after a disastrous debate against Republican challenger Donald Trump raised questions about his acuity and ability to serve another four-year term if reelected.

How much money does Biden have?