Stop daydreaming ! The Democrats will not replace Joe Biden with anybody had the latter been Kamala Harris or Michelle Obama.
If they do so, it would be their "Dien Bien Phu debacle " because Trump would win .
Why ? because Joe Biden showed during the last debate that he is still very sharp. he even overperformed. He kept Trump on the defensive on inflation , jobs, the war in Ukraine, Gaza and the dreaded World War 3 issues.
Trump was struggling, and as expected he pushed a on the "illegal immigrant threat ". When you look at the debate, you see that Trump was stripped from the waters he loves to swim in - racist rants, praising confederate flag and the "proud Boys" -. he was even obliged to talk about finding jobs for "black people ".
Very funny.