My junior high school took us on an official field trip to a campaign rally for Ann Richards, the incumbent Democratic governor at the time (who ended up losing to George W. Bush.) A whole lot of parents were pissed as all hell when they found out that we were basically taken out of class without notice or permission to be used for a photo op for a politician they didn't necessarily support. Can't say any of the students cared one way or the other, except it was nice to be let out of class to go outside.