evidence: "It’s a familiar story: following Thursday night’s debate, the beltway class is counting Joe Biden out," Jen O’Malley Dillon, chair of the Biden campaign, said in a memo. "The data in the battleground states, though, tells a different story." [...] While some Democratic lawmakers have privately expressed concerns and hope Biden will drop out of the race during the convention, they have largely remained steadfast in public support for Biden’s campaign. [...] The path forward for Democrats is riddled with uncertainty. None of Biden’s possible replacements have proven to have more support than the president himself, and the threat of a Trump presidency and its impact on key issues of domestic and foreign policy leaves little room for error.