Overview

• Letterman, a longtime Biden supporter, will headline the July 29 fundraiser in Martha's Vineyard.
• Hawaii Governor Josh Green, a close ally, is hosting the event at a family friend's home.
• Biden faces growing calls from prominent Democrats and Hollywood figures to withdraw from the race.
• The Biden campaign has scheduled multiple fundraising events through the end of July.
• Vice President Kamala Harris has reassured major donors of Biden's intention to remain in the race.