I never understood how politicians or rallies increased their votes. I mean the ones that drive there, go through security, and wait awhile until the politician finally shows up seem like the ones that’ll vote in any case. Anyone understand how these help?
A lot, IMO, is an enthusiasm/psychological thing. It is one thing to see the candidate you are voting for on TV, and another to actually be there, and be in an exciting environment. Sort of like playing a football game in an empty yard vs a full stadium.
And even if the people their aren’t undecided, they get excited, maybe volunteer or at least talk. You get regional news coverage, and then in smaller towns you probably DO get people not for sure voting, because it is an “event” in those places to go see a candidate.