You say that as if all registered voters cast a vote for every election.
This will, at least, energize the R party to vote in numbers we have yet to see. Meanwhile, you’ve got apathetic D voters who really don’t want Biden to be president. It’s not about changing voters’ votes - our elections are never about that - t’s about the number of people who cast a vote.
Until now, I’ve been very much in the camp of promoting all the things Biden has done to convince voters he’s still worth supporting. Yesterday’s event changes that. The DNC needs to combat this pending influx of voters with an invigorating candidate.