It’s about picking a single target that can be focused on in a very narrow manner in order to send a message.
Going after multiple concurrent targets is much harder, as the focus of the effort will be distributed and dispersed. The increased risk of failure generally isn’t worth it, especially since it introduces the possibility of a 1 to 1 result, even allowing the win to be dismissed given the loss.
Better to win big in a single contest scenario than to split or lose in a dual one.
Again, speaking purely from the standpoint of pragmatic political action.
There are those of us in Mississippi, and those of us in Kentucky. Those of us in Mississippi can punish Cochran, and those of us in Kentucky can punish McConnell.
As far as i'm concerned, they both need to go. They stepped over the line of tolerable behavior.