ican711nm wrote:Gelisgesti wrote: ...Try watching the debate again with the thought of a mic ....
Looks like the back of a bullet proof vest to me.

okay. you made me think with that one. so, i went back and pulled the image and zoomed the back area.
it
could be a vest. but, it doesn't look like it goes high enough up his back. and the bulge, which i thought may be the over the shoulder of the vest doesn't look like it goes all the way up and over the shoulder to connect with the front of the vest.
but still, you may be right. it
could be a vest.
but the more i looked at it and thought back to my years working in pro broadcast audio and video, it really does look to me to be the right size for a newer model "body pack" receiver for in ear com.
now, it would be non-standard ( as opposed to uncommon) to place the body pack on the back of the "talent" where the bulge appaears. but with the advent of "reality" television, we were forced to come up with new and creative ways of "wiring the talent" to remove the "evidence" of broadcast equipment.
additionally, when i looked closely, above the "bulge", there appears to be first, a small cable and then a smaller bulge that looks to me like the 3-4" coil that is found in most of the cables for this kind earpiece.
the cable then continues, uncoiled, directly above the smaller bulge of the coil up to the collar of the suit.
now, where the "under the suit" area of the cable seems to terminate, at the collar, it does appear that a short length of clear, thin cable tracks up along of the neck, where, if it is in fact a wireless unit, the cable would then be placed over the top of the ear where it would terminate in a small, clear plastic "ear bud". if a small eraser sized piece were used, it would be virtually invisible to anyone standing more than a few feet away. to notice it from a distance, you would have to be paying attention and know what you were looking for.
so yeah, in my opinion, it
could be a wireless in ear foldback monitor.
or, it
could be a bp vest.
frankly neither one of these things would surprise me