On a Tuesday in early July, 75 wealthy Democratic political donors gathered on a Zoom call to discuss the path forward for President Joe Biden after his calamitous debate performance against Donald Trump, according to a person on the call. Only one of the donors said they thought Biden should stay in the race, this person said. All the others made it very clear that they believed Biden needed to drop out of the race, if the party wanted to defeat Trump in November. People who spoke to CNBC for this story were granted anonymity to speak freely about a sensitive matter. Since then, big money donors who fund either the Biden campaign, his allied political action committees or the party at large have launched a lobbying campaign aimed at seni