That is, a candidate who blatantly lied about their true position to get elected, and then once in office said “Bwa-ha-ha! You FOOLS!”. This doesn’t mean mere hypocracy or a failure to keep promises i.e. “no new taxes”. Rather, someone who deliberately sold the voters a pig in a poke.
I’m putting this for now in GD rather than GQ because although strictly speaking it’s a question it’s bound to raise of lot of controversy.