I think some are. We have some dems who call in to our local talker...and, I swear, it sounds like they are reading off the same website or email. Like drones. The host and producer are pretty good at smoking them out, but some squeak through.
I haven't listened to C-SPAN for about 15 or more years, when I dropped cable or satelite (whichever ... I forget), and I USED to get ready for work with this in the background.
I found this link this morning and decided to share it