evidence: In interviews with CNN, more than two dozen sources familiar with the dynamics inside the West Wing and campaign said there is now widespread acceptance that Biden remaining in the 2024 race is wholly untenable. [...] Ricchetti is more clear-eyed about the challenges facing Biden, two people familiar with the dynamic inside the West Wing said, largely because he remains the point person for lawmakers trying to send a message to the president. Amid a fury of speculation about Biden’s future, senior-most West Wing advisers to Biden told CNN Thursday night that they have had no discussions among themselves – or with Biden – about him dropping out of the presidential race. [...] Unlike on Capitol Hill, where Democratic lawmakers have slowly begun to publicly voice their concerns – so far, 20 House Democrats have come out to call on Biden to drop out – White House and campaign aides have had little choice but to continue doing their day jobs. As Biden and his campaign aides continue to publicly insist that the president is not going anywhere, the mood in many corners of the White House and campaign has been of deep despair.