United States President Joe Biden is assuring donors following concerns over his performance in the first presidential debate with Republican nominee Donald Trump. Biden has been attending fundraisers to acknowledge worries but affirm his commitment to his re-election campaign. "I didn’t have a great night, but I’m going to be fighting harder," Biden told attendees at a fundraiser at the home of New Jersey Governor Phil Murphy. Biden emphasized that "Donald Trump is a genuine threat to the nation” and expressed concerns about the impact on democracy and the economy if Trump gets re-elected. Biden and his wife, Jill, participated in campaign events to secure more funding. The couple attended events at the homes of Avram Glazer and Barry Rosenstein, where Biden critiqued Trump's presidential record. The Biden campaign reported over $27m raised, with a focus on events supporting the LGBTQ community. Democratic donors are questioning the effectiveness of Biden's re-election campaign post-debate and considering potential replacements like Gretchen Whitmer, Gavin Newsom, and Kamala Harris. Biden acknowledged his challenges but stressed his commitment to truth-telling.