President Joe Biden's halting debate performance on Thursday night has led some in his own party to begin questioning whether he should be replaced on the ballot before November. There is no evidence Biden is willing to end his campaign. And it would be nearly impossible for Democrats to replace him unless he chooses to step aside. MORE: https://www.wtsp.com/article/news/nation-world/biden-replacement-presidential-election/507-d659dc7a-2b6c-49bd-b1c0-8e3e76214d4d