Trump’s Crowds Are Dwindling as His Campaign Winds Down | The former president likes to talk about the attendance at his rallies, but empty seats and early exits have grown more common.
People who have already early voted may not care so much about going to a rally. Just speculating. Still, not sure crowd size at this stage correlates to any meaningful outcome.
If my experience is any guide, Harris weekday rallies are full of people who have already voted, and have been canvassing in the area. People don't go to one because they're expecting a reason to vote for her; they're going because it's a way to stay excited at times of day/week when people are less likely to answer the door.