Is Gas-Lighting a liberal tactic in an attempt to gain the edge????????????  

gas-light-ing   -  the act or practice of grossly misleading someone, especially for one's own advantage.

Would we say that is what the liberal democrats have been doing for the past decade +

Is there a word that describes a group of people that make false claims and accusations against an individual or group for political gain. And then once investigated, it is discovered that the party making said claims & accusations are in fact they themselves guilty of the very crime they have accused others of committing?