A Biden donor says giving him cash is a waste of time and money if that bad debate showed what Biden's really like

"If it's as bad as what we all witnessed on Thursday night, then he needs to put his country first and step aside immediately," investor Whitney Tilson said of President Joe Biden on Saturday.

Andrew Caballero-Reynolds/AFP via Getty Images

• Investor Whitney Tilson says he felt "deceived" after watching the Biden debate with Trump last week.
• Tilson said Biden should pull out "if the man I saw at the debate is the real Joe Biden right now."
• The Biden donor said it would...