Reply #59: It may be ill-advised, but I suspect it's much more common than we'd like to believe.

[TwilightZone]

And, I guarantee that Clinton isn't the first, last, or only candidate doing so.

The campaigns have very specific ideas on what should be covered in campaign stops, town hall meetings, debates, etc., and I am all but certain that most, if not all, of them do whatever possible to ensure that those ideas are addressed as often as humanly possible.