Lloyd Doggett becomes first sitting Democratic member of Congress to call on Biden to withdraw CNNCNN anchor breaks down how some Democratic leaders have shifted stance on Biden’s candidacy CNNJoe Biden Might Be Asked by 25 House Democrats to Step Down NewsweekRep. Lloyd Doggett becomes first Democrat in Congress to call for Biden’s withdrawal from 2024 race The Associated PressShadow campaigns: 7 Democrat candidates who could step in if President Biden drops out of 2024 race Fox News