If you think Mitch McConnell is the same man who kept Merrick Garland from getting on the Supreme Court, watch this.

https://scored.co/c/TheDonald/p/1ASFqohSiP/mitch-isnt-voting-his-handlers-a/c

We all know that guy isn't actually deciding what to vote on himself anymore. His staff or his wife Elaine Chao are making all his decisions. It is a common situation in the senate and Cocaine Mitch may not even be the most obvious example. Thad Cochren and Strom Thurmond spring to mind.

But I really don't understand how it works.

His wife and staff don't follow him to the floor.

How do they keep them from just voting randomly on roll call votes, do they train them to take orders from a particular senator who handles them on the floor? Does someone eff with their vote clicker and since they are to out of it to question it or remember which button they hit, no one calls it out?

In the case of Mitch McConnell, the official US Senate seating chart shows Lindsay Graham is directly behind him and Joni Ernst is across a short walk. 90 year old Chuck Grassley sits to his left across a wide gap kind of like those stadiums seats that allow for people in wheelchairs. And Mike Rounds is caddy corner behind him.

https://www.senate.gov/art-artifacts/decorative-art/furniture/senate-chamber-desks/chambermap.htm

I suggest that the most likely Grima Wormtongue whispering in his ear or tapping his left or right shoulder is Lindsay Graham, likely selected in negotiation his indirect handlers Elaine Chao and staff in exchange for sharing his vote on various legislation each party feels more strongly about. They then used Mitch's seniority to make sure Graham got the seat behind Mitch or maybe Graham just happened to be there and Elaine Chao just made a handshake deal with Graham. Elaine just coaches him to do what the nice southern dandy behind him says.