I know people in politics are very reluctant to say that someone is lying. You have to know the intent of the person telling said untruths and that is problematic to prove at best. But when someone takes an action that is easily recognizable and has a commonly known name, why not use it?
Extortion:
to wrest or wring (money, information, etc.) from a person by violence, intimidation, or abuse of authority; obtain by force, torture, threat, or the like.
Does that sound familiar? Republicans are simply trying to extort by threat and intimidation what they cannot achieve electorally. Let's start calling this Republican initiated shutdown and their desired "negotiation" it what it is.