The Allegheny County Chief Executive says voters can wear what they want because they're only there a few minutes and it's not considered campaigning inside the voting area, and nothing is going to be done about it here.....
Which is, frankly, the right thing to do, to me.
I think a lot of these activist folks are just getting excited about voting, and go a little overboard. Most of them are crestfallen and apologetic, or off-put but understanding, when they're told it's not kosher. I feel bad saying so in the minor cases because it's pretty much telling the least cynical ones, "yeah, everything people say about the process is true, take off your button, schlub."
There are a few people who come in decked out just to be dicks (in our case, only the local state representative, haha) but those people are
such a small minority...and never help their own cause.
That's my two cents, at least.