I was at a Bill Clinton event in a Quakertown high school when I overheard one campaign advance person tell a local party official not to allow people into the event with their own signs. The campaign would provide them with Hillary Clinton signs to wave around once they were inside the high school gym.
The local hack, a matronly woman, was taken aback. “Some of these people spent a lot of time making these signs,” she said.
The advance guy, a young college-kid type, said that was too bad. They cannot allow “unauthorized” signs in the room because sometimes they do not catch embarrassing ones.
“We have to control the message,” he explained to her.
You don’t see this at the Hillary Clinton events, which often have homemade signs. One I saw more than once is “Hillary Offers Prove Experience” with the first letters all highlighted.
I don’t think they are worried about Monica references or the like at the Bill Clinton events. Rather at those rallies there is a apparently problem with Bill Clinton nostalgia being too strong. At the Quakertown event, when he asked rhetorically, “Who would be the best candidate?” one guy shouted out “Bill!” at the top of his lungs.
Clinton paused for a second then went on, ignoring the guy.