I've only watched the video once, but my impression is that it's an
"anyone-but him" vote. ( Merc might like that

)
That is, all the lesser (non-leader) votes end up going stepwise,
to the lowest non-leader.
Sort of like what is happening in the GOP primary now.
Not-Mttt - until Newt is ahead - then not-Newt ...- then Not-Herman
But, maybe I'm missing something...