A good representative is an empty vessel containing the “will of the people” wherever that blows.
It’s bizarre but that’s how it’s supposed to be.
Trump was an excellent empty vessel.
I think images of politicians full of “hot air” (smoke) is as old as political cartoons.
Add up every instruction he’s given to his followers since July 2015 from Build the Wall etc to Jan 6, 2021.
People remember instructions.
“You know what to do” can refer back to an instruction given in 2016 heard by the very same people standing in front of him in Jan 2021.
I’m not calling him a human programming genius by any stretch. But it’s not rocket science to know that people who listen to you listen to you.