Keep in mind these type of people don't change their mind about who they will vote for. They'll see a weak and feeble Biden and still vote for him,
The face-off doesnβt seem to have caused many people to reconsider their vote. That said, Biden did lose a small share of potential voters: Post-debate, 46.7 percent of likely voters said they were considering voting for him, which was 1.6 percentage points lower than before the debate.
Keep in mind these type of people don't change their mind about who they will vote for. They'll see a weak and feeble Biden and still vote for him,
https://projects.fivethirtyeight.com/biden-trump-june-debate-poll/?utm_source=pocket-newtab-en-us